Coral Restoration in Fiji: How Travellers Can Help Rebuild the Reef • Fiji Travel

The first time you descend onto a healthy Fijian reef in good visibility, the scale of what you are looking at can be difficult to process. The colour is the first thing — the improbable pinks and purples and yellows of soft corals in the current, the electric blue of a damselfish against the brown lattice of a staghorn formation, the slow green pulse of a giant clam. Then the complexity registers: the hundreds of individual coral colonies creating a three-dimensional architecture that extends in every direction, each one a living animal, each supporting a community of fish and invertebrates that collectively form one of the most productive ecosystems on earth. You are floating over a structure that has been built, colony by colony, over thousands of years, and that is now facing pressures unlike anything in its history.

That is the essential context for understanding coral restoration in Fiji. The reefs are extraordinary. They are also in trouble. And between those two facts lies a body of work — scientific, community-based, tourism-funded, and deeply practical — that is worth understanding and worth supporting.

This article is an honest assessment. It does not pretend that coral restoration can solve climate change or that planting a fragment on a resort holiday is going to save the Great Astrolabe Reef. What it does say is that restoration work in Fiji is real, it is achieving measurable results at local scales, and there are meaningful ways for travellers to engage with it — from choosing reef-safe practices to participating in planting programmes to directing their tourism spending toward operations that fund genuine conservation.

The State of Fiji’s Coral Reefs: An Honest Assessment

Fiji’s reef system is vast. The archipelago’s 332 islands are surrounded by approximately 10,000 square kilometres of reef, spanning everything from the barrier reef structures of the Great Astrolabe (the fourth largest barrier reef in the world) to the fringing reefs of the Mamanucas and Yasawas, the deepwater reefs of the Bligh Waters, and the shallow lagoon systems of the Lau group. The biodiversity is exceptional — over 400 species of coral and more than 1,500 species of fish have been documented in Fijian waters. By any global standard, these are world-class reefs.

But the trajectory is concerning. Mass coral bleaching events — driven by marine heatwaves associated with El Nino cycles compounding on the background rise in ocean temperatures — struck Fiji’s reefs in 1998, 2000, 2016, and 2020, with less severe but still damaging episodes in between. The 2016 event, coinciding with one of the strongest El Ninos on record, was particularly devastating. Surveys on the Great Astrolabe Reef documented 40 to 60 percent mortality in shallow-water hard coral communities, with staghorn and plate corals — the fast-growing, structurally important species that create habitat for reef fish — suffering the heaviest losses.

Cyclone damage compounds the thermal stress. Cyclone Winston in 2016 — the most intense tropical cyclone ever recorded in the Southern Hemisphere — physically shattered reef structures across the eastern islands, particularly around Koro Island and the northern coast of Viti Levu. Wave energy from a Category 5 cyclone can reduce centuries of coral growth to rubble in hours, and the recovery from structural damage is measured in decades, not years.

Crown-of-thorns starfish (Acanthaster planci) outbreaks represent a third pressure. These large, voracious coral predators occur naturally on Pacific reefs, but population explosions — often linked to nutrient runoff from agricultural land, which promotes the phytoplankton that crown-of-thorns larvae feed on — can devastate coral cover. Fiji has experienced periodic outbreaks, particularly in the Mamanucas and the reef systems near the mainland coast.

The honest assessment, then, is this: Fiji’s reefs are not dead, and they are not dying uniformly. Many reef areas, particularly those in deeper water, in well-managed marine protected areas, or in locations with strong current flow that moderates temperature extremes, remain in good to excellent condition. The Bligh Waters, parts of the Somosomo Strait near Taveuni, and sections of the Great Astrolabe are genuinely spectacular. But the overall trend is one of declining resilience — reefs that once recovered between disturbance events are now being hit before recovery is complete, and the cumulative effect is a reduction in coral cover, structural complexity, and the ecological services that healthy reefs provide.

Coral Bleaching: What It Is and What It Means

Coral bleaching deserves a clear explanation, because understanding it changes how you see the reef you are visiting.

Corals are animals — specifically, colonies of tiny polyps related to jellyfish and anemones. Each polyp harbours symbiotic algae called zooxanthellae in its tissues. These algae photosynthesize, producing sugars that provide up to 90 percent of the coral’s energy needs. In return, the coral provides the algae with shelter and the nutrients they need for photosynthesis. The arrangement has been spectacularly successful for millions of years.

Bleaching occurs when the coral is stressed — most commonly by elevated water temperatures, but also by pollution, freshwater inundation, or disease — and expels its zooxanthellae. Without the pigmented algae, the coral’s translucent tissues reveal the white calcium carbonate skeleton beneath, producing the characteristic “bleached” appearance. The coral is not dead at this point — it is starving. If the stress is relieved within a few weeks, the coral can reacquire zooxanthellae and recover. If the stress is prolonged — sustained temperatures even one or two degrees above the normal summer maximum — the coral dies.

What makes this particularly insidious is the compounding effect. A reef that bleaches and recovers in one year is weakened going into the next. If another thermal event occurs before full recovery — and the interval between events is shrinking as ocean temperatures rise — mortality increases. The fast-growing branching corals (staghorn, table coral) that provide the most habitat are also the most temperature-sensitive, meaning that bleaching events preferentially remove the species that do the most ecological work.

When you snorkel over a Fijian reef and see a mix of healthy coral, recovering coral, and dead coral overgrown with algae, you are looking at this process in action. The reef is telling you its recent history, colony by colony.

Active Coral Restoration Projects Travellers Can Visit

Coral restoration in Fiji takes several forms, from small-scale resort-based planting programmes to large-scale community and NGO-led initiatives. The following are projects that travellers can engage with directly.

Reef Explorer Fiji (Pacific Harbour): Reef Explorer operates one of Fiji’s most established marine education and conservation centres, located in Pacific Harbour on the Coral Coast. Their facility includes a marine education centre with live displays, a coral nursery, and an outplanting programme that transplants nursery-grown coral fragments onto degraded reef areas in the Beqa Lagoon system. Visitors can tour the facility (approximately FJD $30 / AUD $21 per person), learn about coral biology and restoration techniques, and participate in coral planting activities. The programme is genuine — Reef Explorer has been operating since 2001 and has outplanted thousands of coral fragments.

Jean-Michel Cousteau Resort (Savusavu): The Cousteau Resort on Vanua Levu operates a marine conservation programme that includes coral monitoring and restoration in the Savusavu Bay area. Guests can participate in coral planting activities as part of the resort’s environmental programme. The resort employs a marine biologist who leads educational sessions and coordinates conservation activities. Room rates at Cousteau start from approximately FJD $800 per night (AUD $560), and the marine programme is included for guests.

Kokomo Private Island Resort (Kadavu): Kokomo operates a significant coral restoration programme on the Great Astrolabe Reef, one of Fiji’s most important reef systems. The resort’s marine biology team maintains coral nurseries and conducts regular outplanting on damaged reef sections. Guest participation in coral planting is offered as an activity, and the resort funds the programme through its operations. This is a luxury property (rates from approximately FJD $3,500 per night / AUD $2,450), but the restoration work is substantive and well-documented.

Mamanuca Environment Society (MES): MES coordinates marine conservation across the Mamanuca island group, working with resorts and island communities on reef monitoring, crown-of-thorns removal, and coral restoration. Some Mamanuca resorts offer guest participation in MES-supported conservation activities, including reef clean-ups and coral monitoring dives. Ask your resort about MES programmes when booking.

Community-based coral gardening projects operate in several locations, often with support from the Wildlife Conservation Society (WCS) Fiji or the University of the South Pacific. These projects typically involve village communities in growing coral fragments on underwater nursery frames (simple structures made from PVC pipe or metal rebar) and transplanting them to degraded reef areas within the community’s locally managed marine area. The scale is modest — dozens to hundreds of fragments per project — but the community ownership is significant, and the results are visible.

The Science of Coral Restoration

Understanding what restoration involves makes participation more meaningful and helps you evaluate the legitimacy of programmes you encounter.

Fragmentation and nurseries: The most common restoration technique in Fiji involves taking small fragments (typically 5 to 10 centimetres) from healthy donor colonies and growing them in nursery structures. Coral fragments heal and grow in nursery conditions — elevated off the substrate to reduce algae competition, positioned in areas with good water flow — at rates significantly faster than natural growth. A finger-sized coral fragment can grow to a small colony of 15 to 20 centimetres within six to twelve months in a well-managed nursery.

Outplanting: Once nursery fragments have reached sufficient size, they are transplanted onto degraded reef areas. Fragments are typically attached to the substrate using marine epoxy or cable ties (which eventually disintegrate as the coral grows over them). Outplanting site selection is critical — fragments planted on unstable rubble, in areas with poor water quality, or in locations subject to ongoing stressors will not survive. The best programmes monitor outplanted fragments for survival and growth over months and years.

Species selection: Not all corals are equally suitable for restoration. Fast-growing branching species (Acropora, Pocillopora) are commonly used because they colonise quickly and provide immediate structural habitat. However, these are also the species most vulnerable to bleaching, which creates a tension in restoration strategy. Some programmes are now focusing on more heat-tolerant species or on fragments from colonies that survived bleaching events — effectively selecting for thermal resilience.

Limitations: Coral restoration is not a substitute for addressing the root causes of reef decline. No amount of fragment planting compensates for continued warming. A nursery programme that plants 500 fragments on a reef that bleaches again the following year has achieved very little in net terms. The value of restoration is local and conditional: it works best as a supplement to strong reef management (reduced fishing pressure, pollution control, marine protected areas) and in locations where the primary stressor has been addressed or is intermittent rather than continuous.

Marine Protected Areas and Locally Managed Marine Areas

Fiji’s approach to reef conservation relies heavily on two complementary systems: formal marine protected areas (MPAs) and community-based locally managed marine areas (LMMAs). Understanding these is important for appreciating the context in which restoration work operates.

Marine Protected Areas are designated by national legislation and prohibit or restrict extractive activities (fishing, harvesting) within their boundaries. The Shark Reef Marine Reserve in Beqa Lagoon is one of the best known — a no-take zone that protects the reef ecosystem supporting Fiji’s famous shark dive operations. Namena Marine Reserve in the Bligh Waters, established in 1997 and expanded in 2003, protects one of Fiji’s most pristine reef systems. These formal MPAs are relatively few in number but provide critical refugia for reef ecosystems.

Locally Managed Marine Areas are a distinctly Fijian innovation — and one of the most successful community-based conservation models in the world. Under the LMMA system, village communities designate sections of their traditional fishing grounds as tabu areas (no-take zones), managed according to both traditional authority (the chief and village council) and modern conservation science. The Fiji Locally Managed Marine Area Network, established in 2001, now includes over 400 communities managing more than 12,000 square kilometres of nearshore marine territory — an area larger than Fiji’s formal MPA estate.

The LMMA approach works because it aligns conservation outcomes with community authority and livelihood interests. Tabu areas, periodically opened for harvest on special occasions, typically show dramatically higher fish biomass and coral cover than adjacent unprotected areas — a visible and economically tangible benefit that sustains community commitment to the programme. The spillover effect — fish breeding in protected areas and moving into adjacent fishing grounds — increases catches in the long term, demonstrating that conservation is not a cost to communities but an investment.

For travellers, the practical implication is that many of the best snorkelling and diving sites in Fiji are within or adjacent to LMMAs or MPAs. The reef quality you are enjoying is not accidental — it is the result of conscious management decisions by the communities that own and steward those waters.

Crown-of-Thorns Starfish Removal Programmes

Crown-of-thorns starfish (COTS) are native to Pacific reefs, but population explosions can cause devastating coral mortality. A single adult COTS can consume up to 10 square metres of live coral per year, and during outbreak conditions — when densities reach dozens or hundreds of animals per hectare — the cumulative impact is severe.

COTS removal programmes operate in several locations in Fiji, primarily in the Mamanucas and on reefs near the mainland coast where agricultural runoff promotes the conditions that trigger outbreaks. The removal method is straightforward: divers locate COTS on the reef and either inject them with bile salts (which kills them within 24 to 48 hours while they remain on the reef and are consumed by scavengers) or physically remove them from the reef for disposal. The injections are the preferred modern method — more efficient, less disruptive, and more humane.

Several Mamanuca resorts sponsor COTS removal programmes through the Mamanuca Environment Society. Divers staying at participating resorts can sometimes join COTS removal dives as observer-participants — you will not be wielding the injection equipment yourself, but you can assist with spotting and recording. MES conducts regular COTS surveys and removal operations, funded in part by resort levies.

The removal work is Sisyphean in character — COTS larvae are planktonic and can recruit from distant populations, meaning that local removal does not prevent future outbreaks — but it provides meaningful short-term relief for specific reef areas, buying time for coral recovery between thermal stress events.

Reef-Safe Practices for Snorkellers and Divers

The most immediate thing any visitor to Fiji’s reefs can do for conservation is to minimize their own impact. This sounds obvious, but the cumulative effect of thousands of snorkellers and divers doing small amounts of damage is significant, and the difference between reef-aware and reef-unaware visitors is material.

Buoyancy and body position: For snorkellers, this means staying horizontal in the water and not standing on or touching the reef. Coral is living tissue over a brittle calcium carbonate skeleton — a single fin kick can break a coral colony that took years to grow. For divers, good buoyancy control is the single most important reef-safe skill. If you are not confident in your buoyancy, take a refresher course before diving on Fiji’s reefs. The damage done by divers who cannot maintain neutral buoyancy — dragging consoles across coral, kneeling on reef for photographs, crashing into formations during descents — is one of the most preventable forms of reef degradation.

Do not touch, collect, or stand on coral. This includes dead coral. Dead coral structures provide substrate for recruitment of new coral colonies and habitat for invertebrates. Removing shells, coral fragments, or other natural materials from the reef is illegal in many Fijian marine areas and ecologically harmful everywhere.

Anchor responsibly. If you are on a private boat, use mooring buoys where available rather than dropping anchor on the reef. Anchor damage — a single anchor drop can destroy a patch of coral the size of a car — is one of the most significant point-source impacts on reef health.

Manage your waste. Do not discard anything in the water. Cigarette butts, food wrappers, and sunscreen bottles are obvious, but even organic waste (fruit peels, food scraps) can alter water chemistry in enclosed reef areas.

What Reef-Safe Sunscreen Actually Means

The sunscreen question deserves its own section, because misinformation is rampant and the stakes for Fiji’s reefs are real.

Oxybenzone and octinoxate are the two chemical UV filters most consistently identified by research as harmful to coral. At concentrations found in popular swimming and snorkelling sites — and these concentrations have been measured at levels well above laboratory thresholds — they can cause coral bleaching at the cellular level, interfere with coral reproduction, and damage coral larvae. The evidence is strong enough that Hawaii, Palau, and several other jurisdictions have banned sunscreens containing these ingredients.

Fiji has not enacted a formal sunscreen ban, but several resorts and marine operators have adopted reef-safe sunscreen policies, and the broader movement toward mineral-based sunscreens is well underway.

What to look for: Mineral sunscreens that use zinc oxide or titanium dioxide as their active UV-blocking ingredients are the recommended alternative. These minerals sit on the skin surface and physically block UV radiation rather than absorbing it chemically. They are not absorbed into the bloodstream and do not dissolve into the water in the same way chemical filters do.

What to avoid: In addition to oxybenzone and octinoxate, other chemical UV filters including octocrylene, homosalate, and avobenzone have been flagged by some studies as potentially harmful to marine life, though the evidence is less definitive than for oxybenzone.

Practical recommendations: Apply sunscreen at least 15 minutes before entering the water, allowing it to bond to your skin. Use the minimum amount needed. Consider rash guards and UV-protective clothing as primary sun protection — they are more effective than sunscreen and have zero reef impact. Several reef-safe sunscreen brands are available in Fiji, including at resort shops, though selection may be limited on outer islands. Bringing your own from home ensures you have what you need.

The cost of reef-safe mineral sunscreen is typically FJD $30 to $60 (AUD $21 to $42) for a standard tube, somewhat more expensive than chemical alternatives. The price difference is trivial relative to the cost of the trip and the value of the reef you are visiting.

Organisations Doing the Work

A brief directory of the key organisations engaged in reef conservation and restoration in Fiji, for travellers who want to learn more or contribute.

Wildlife Conservation Society (WCS) Fiji: WCS has operated in Fiji since 2002, working on marine conservation, reef monitoring, and community-based resource management. Their Fiji programme is one of the most scientifically rigorous conservation operations in the Pacific, producing peer-reviewed research on reef health, fisheries management, and climate adaptation. WCS works closely with communities and government on LMMA development and MPA management.

Fiji Locally Managed Marine Area Network (FLMMA): The network coordinates and supports over 400 community-based marine management areas across Fiji. FLMMA provides technical support, training, and monitoring resources to communities managing their own marine resources. Their website and publications are an excellent resource for understanding how community-based conservation operates in Fiji.

Coral Reef Alliance (CORAL): An international organization that operates programmes in Fiji focused on reef resilience and community-based management. CORAL’s approach emphasises building reef resilience through local action — reducing fishing pressure, managing water quality, and supporting natural recovery processes.

Mamanuca Environment Society (MES): The conservation body for the Mamanuca island group, working on reef monitoring, COTS removal, waste management, and environmental education. MES is funded primarily through resort levies and grants and is the main conservation coordination body for the island group most visited by tourists.

University of the South Pacific (USP): The regional university based in Suva has marine science programmes that conduct reef research, coral taxonomy, and conservation science across the Pacific. USP researchers are involved in many of the reef monitoring and restoration programmes throughout Fiji.

How Tourism Funds Conservation

The financial relationship between tourism and reef conservation in Fiji is direct and important. The tourism industry generates approximately FJD $2 billion annually for the Fijian economy, and a substantial proportion of that revenue is driven by reef-based activities — snorkelling, diving, island resort stays, and boat tours. The economic argument for reef conservation is therefore straightforward: healthy reefs equal tourism revenue, and the cost of conservation is a fraction of the revenue at stake.

Several mechanisms channel tourism revenue into conservation:

Resort environmental levies: Some Mamanuca and Yasawa resorts include a small environmental levy (typically FJD $5 to $15 per guest per night / AUD $3.50 to $10.50) that is directed to MES or to community conservation funds. This model, while modest on a per-guest basis, generates significant aggregate funding given the volume of visitors.

Marine park fees: Some marine protected areas and LMMA sites charge access fees for divers and snorkellers. The Namena Marine Reserve, for example, charges a fee (typically FJD $25 / AUD $17.50 per diver per day) that funds reserve management and community benefits. These fees are generally well-accepted by visitors and provide reliable revenue for conservation operations.

Direct resort conservation programmes: Resorts that employ marine biologists, operate coral nurseries, and conduct reef monitoring are funding conservation directly through their operational budgets. The cost is absorbed into room rates, meaning that guests are paying for conservation whether they know it or not. The best resorts are transparent about this investment and offer guests the opportunity to participate.

Dive operator contributions: Many dive operators in Fiji contribute to reef conservation through direct action (reef clean-ups, COTS removal, mooring buoy maintenance) and through financial contributions to conservation organisations. Choosing a dive operator that is visibly engaged in conservation work directs your spending toward reef protection.

The Future of Fiji’s Reefs: Challenges and Hope

The future of Fiji’s coral reefs depends on two things happening simultaneously: global emissions reductions that limit ocean warming, and local management that maintains reef resilience in the interim. Neither alone is sufficient.

On the global front, the outlook is uncertain. The Paris Agreement targets — limiting warming to 1.5 degrees above pre-industrial levels — would significantly reduce the severity and frequency of mass bleaching events on Fijian reefs. Current emissions trajectories make the 1.5-degree target increasingly difficult to achieve, which means that Fiji’s reefs will almost certainly face further thermal stress events in the coming decades.

On the local front, there is genuine cause for optimism. Fiji’s LMMA network is one of the most successful community-based conservation systems in the world, and its coverage continues to expand. Reef monitoring data from well-managed marine areas shows that coral communities can and do recover from bleaching events when other pressures (fishing, pollution, physical damage) are reduced. The coral restoration programmes operating across the archipelago are building capacity and knowledge that, while unable to reverse global trends, can maintain reef function at scales that matter to communities and ecosystems.

The reefs that are most likely to persist are those that are well-managed, connected to healthy fish populations, located in areas with favourable oceanographic conditions (cooler upwelling, strong currents), and supported by communities and operators who invest in their protection. These are, not coincidentally, the reefs that travellers visit and that generate the tourism revenue that funds their management.

Your visit to a Fijian reef is not a passive consumption of scenery. It is a participation in an economic system that, when functioning well, creates the financial incentive for conservation. The most useful thing you can do as a visitor is to make that system function well: choose operators and resorts that invest in genuine conservation, practise reef-safe behaviours, pay marine park fees without complaint, and leave the reef in the condition you found it. The reef was there before you arrived, and whether it is there for the next generation of visitors depends, in part, on the choices you make while you are floating above it.

Frequently Asked Questions

Are Fiji’s coral reefs dying?

No, but they are under significant stress. Mass bleaching events in 1998, 2016, and 2020 caused substantial coral mortality in some areas, and the frequency of these events is increasing. However, many reef areas remain in good to excellent condition, particularly in marine protected areas and deeper water sites. Recovery is occurring in many locations, though it is slower than the interval between stress events.

Can I participate in coral planting during my Fiji holiday?

Yes. Several resorts and conservation centres offer coral planting experiences for guests, including Reef Explorer in Pacific Harbour, Jean-Michel Cousteau Resort in Savusavu, and Kokomo Private Island on the Great Astrolabe Reef. Activities typically cost FJD $30 to $100 (AUD $21 to $70) per person at non-resort facilities, or are included in room rates at conservation-focused resorts.

What is reef-safe sunscreen?

Reef-safe sunscreen uses mineral UV blockers (zinc oxide or titanium dioxide) rather than chemical filters like oxybenzone and octinoxate, which have been shown to cause coral bleaching and damage coral larvae at concentrations found in popular swimming sites. Look for mineral-based formulas and apply at least 15 minutes before entering the water.

What is the biggest threat to Fiji’s coral reefs?

Climate change — specifically ocean warming that causes coral bleaching — is the primary threat. Secondary threats include crown-of-thorns starfish outbreaks, cyclone damage, overfishing, land-based pollution and sedimentation, and anchor damage. Local management can address the secondary threats but cannot, on its own, solve the warming problem.

How do LMMAs work?

Locally Managed Marine Areas are sections of traditional fishing grounds designated as no-take zones by village communities, managed through a combination of traditional authority (chiefs and village councils) and modern conservation science. Over 400 communities across Fiji participate in the LMMA network. Tabu areas typically show significantly higher fish biomass and coral cover than unprotected areas, benefiting both conservation and fisheries.

Can I volunteer with a coral restoration project in Fiji?

Longer-term volunteering (two or more weeks) is available through some conservation organisations and community-based projects. Short-term participation is available through resort-based programmes and facilities like Reef Explorer. For longer commitments, contact WCS Fiji, the FLMMA Network, or community tourism operators to inquire about volunteer opportunities.

Is scuba diving harmful to coral reefs?

Diving with good buoyancy control and reef-aware practices causes minimal impact. Diving with poor buoyancy — touching coral, kneeling on reef, dragging equipment — causes measurable damage. If you are not confident in your buoyancy, take a refresher course before diving on Fiji’s reefs. Choose dive operators that emphasise reef-safe practices and limit group sizes.

What are crown-of-thorns starfish and why are they a problem?

Crown-of-thorns starfish (Acanthaster planci) are large coral-eating starfish native to Pacific reefs. At normal population levels, they play a natural role in reef ecology. During population explosions — often triggered by nutrient runoff that promotes larval survival — they can devastate coral cover. A single adult can consume up to 10 square metres of live coral per year. Removal programmes in Fiji use bile salt injections to control outbreaks on priority reef areas.

By: Sarika Nand