The Belize Barrier Reef is the second-largest coral reef system in the world, after Australia’s Great Barrier Reef, stretching over 185 miles along the Caribbean coast of Belize. It is part of the Mesoamerican Barrier Reef System, which spans over 600 miles from Mexico to Honduras.
This UNESCO World Heritage Site is famed for its vibrant marine biodiversity, colorful coral formations, and crystal-clear waters. It’s a mecca for divers, snorkelers, scientists, and conservationists alike.
Home to 500+ species of fish, 70+ hard coral types, and countless invertebrates.
Key site for marine conservation and research.
Offers some of the best diving and snorkeling experiences on the planet.
Provides vital protection to Belize’s coastline from storms and erosion.
Located near Ambergris Caye and Caye Caulker.
Features a cut through the reef that creates a natural channel full of life.
Ideal for snorkeling and shallow diving.
Highlights: Nurse sharks, sea turtles, eagle rays, colorful coral gardens.
Adjacent to Hol Chan.
Famous for its nurse sharks and southern stingrays that swim alongside snorkelers.
Very safe and beginner-friendly.
The largest atoll in Belize.
Remote, less crowded, and teeming with diverse marine species.
Excellent for drift diving, macro photography, and wall diving.
Highlights: Spotted eagle rays, barracudas, moray eels, and vibrant coral walls.
A remote, pristine atoll great for multi-day diving trips and eco-lodges.
Ideal for experienced divers seeking less touristy locations.
Known for marine research stations and minimal development.
Technically part of the reef system.
A massive underwater sinkhole, 1,043 feet wide and over 400 feet deep.
Advanced divers can explore stalactite formations and encounter reef sharks.
The reef supports a stunning variety of species, including:
Fish: Parrotfish, groupers, angelfish, barracuda, snapper, tarpon.
Corals: Brain coral, staghorn, elkhorn, fan coral.
Invertebrates: Lobsters, sea stars, sea urchins, conchs.
Marine mammals: Manatees and occasional dolphins.
Reptiles: Sea turtles (hawksbill, green, loggerhead).
Activity | Description |
---|---|
Snorkeling | Shallow reefs offer ideal conditions for all levels. |
Scuba Diving | Wrecks, walls, and deep dives make this reef a dream for divers. |
Kayaking | Paddle along mangroves and reef edges in protected lagoons. |
Underwater Photography | Incredible opportunities for shooting vibrant marine life. |
Marine Tours | Guided eco-tours educate visitors on conservation efforts. |
Dry Season: November to May (ideal conditions for diving and visibility)
Wet Season: June to October (less crowded, still good underwater visibility)
Best Diving Months: March–June (calm seas, higher chances to spot whale sharks in southern Belize)
Location | Recommended For | Highlights |
---|---|---|
Ambergris Caye | Divers & nightlife lovers | Great reef access, luxury resorts, boat tours. |
Caye Caulker | Backpackers & chill vibes | More laid-back, affordable, and close to Hol Chan. |
Turneffe Island | Dive retreats & eco-lodges | Remote, all-inclusive dive resorts. |
Placencia | Nature + diving | Access to southern reef systems & whale shark tours. |
The reef faces threats from climate change, pollution, and overfishing, but Belize has made significant efforts to protect it:
Banned offshore oil drilling.
Established protected marine areas.
Supports reef-safe tourism and eco-certifications for tour operators.
As a visitor, you can help by using reef-safe sunscreen, avoiding touching corals, and choosing certified eco-friendly operators.
Snorkeling with sharks at Shark Ray Alley.
Coral gardens of Hol Chan.
Bird's-eye drone shot of the Great Blue Hole.
Colorful reefs at Turneffe.