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Belize Coral Reef Conservation and Reef-Safe Diving

By Dive Belize · · Updated

Diver hovering beside a large red sea fan, the kind of coral that Belize coral reef conservation protects

Belize coral reef conservation is a story with good news in it. The Belize Barrier Reef, the longest in the Western Hemisphere, was placed on UNESCO's list of World Heritage in Danger in 2009. In 2018 it came off that list after Belize took steps that included a moratorium on offshore oil exploration and stronger protection for its mangroves. The reef still faces warming seas, coral bleaching and disease, and every diver can help. Here is what is being done and how to dive in a way that protects it.

Why the Reef Matters

The Belize Barrier Reef is part of the Mesoamerican Reef, which runs from Mexico's Yucatán down to Honduras. In Belize it shelters the coast from storms, supports fishing families and draws the divers and snorkellers who keep much of the tourism economy going. Seven sites, including the Great Blue Hole, Half Moon Caye, Glover's Reef and Laughing Bird Caye, make up the Belize Barrier Reef Reserve System World Heritage Site.

Conservation Work in Belize

Protecting the grazers

In 2009 Belize banned the fishing of parrotfish and other grazing fish. Parrotfish eat the algae that would otherwise smother coral, so keeping them on the reef gives coral a better chance to recover after storms and bleaching.

Coral restoration

At Laughing Bird Caye National Park, off Placencia, the community organisation Fragments of Hope has been growing corals in underwater nurseries and replanting them on damaged reef since 2006. The work is done largely by trained local fishers and tour guides, and the replanted staghorn and elkhorn corals have become one of the best-known restoration projects in the Caribbean.

Monitoring reef health

The Healthy Reefs Initiative publishes regular report cards on the health of the Mesoamerican Reef, measuring coral cover, fish populations and algae. Their reports help governments and communities see what is working.

Tackling lionfish

Lionfish are an invasive species in the Caribbean with no natural predators. Culling programmes and restaurants serving lionfish help keep their numbers down. If you see lionfish on a menu, ordering it helps the reef.

How to Dive Reef-Safe

  • Master your buoyancy. Most diver damage comes from fins and hands touching coral. Stay well off the reef, keep your gauges and octopus clipped in, and do a refresher or buoyancy course if you're rusty.
  • Never touch, stand on or collect anything. Coral is a living animal, and even a light touch can damage it.
  • Choose reef-safe sun protection. Wear a rash guard and use mineral sunscreen with non-nano zinc oxide or titanium dioxide. Our scuba diving gear guide for Belize explains what to avoid.
  • Don't feed or chase wildlife. Give turtles, rays and sharks space, and never ride or grab them.
  • Pick responsible operators. Look for shops that use mooring buoys instead of anchors, give reef etiquette in every briefing and keep groups small. Our guide to Belize dive shops has a checklist.
  • Eat sustainably. Respect closed seasons for lobster and conch and skip parrotfish. Read more in our post on Belize lobster season.

Pay the Park Fees Gladly

Marine park and reserve fees at sites such as Hol Chan, the Great Blue Hole and the atolls pay for rangers, moorings and monitoring. They are a small part of a dive trip and one of the most direct ways visitors support the reef.

Visiting Laughing Bird Caye

Laughing Bird Caye is reached on day trips from Placencia, often combined with snorkelling and diving on the surrounding reef. Staying in Placencia also puts you close to the whale shark season at Gladden Spit. Our Belize dive accommodations guide covers the southern coast.

Mangroves and Seagrass: The Reef's Partners

Coral reefs don't stand alone. Mangroves along the cayes and coast trap sediment that would otherwise cloud the water, and they shelter young fish that later move out to the reef. Seagrass beds feed turtles and conch and act as nurseries too. Protecting these habitats is part of protecting the reef, which is why Belize strengthened its mangrove regulations alongside its reef protections. When you choose where to stay, it is worth asking whether a property kept its mangroves and handles its wastewater responsibly.

Bleaching and What It Means

Coral bleaching happens when water stays too warm for too long and corals expel the tiny algae that live in their tissue and give them colour. Bleached coral is not dead, but it is stressed and starving, and repeated bleaching can kill it. Divers may see white or pale corals in late summer and autumn, when sea temperatures peak. Avoid touching stressed coral and report what you see.

Report What You See

If you notice coral bleaching, disease, damage or rubbish on a dive, tell your dive guide. Local operators often share sightings with reserve managers and scientists, and divers' observations help track how the reef is doing.