Head offshore from San Pedro for a full-day, three-tank dive at the Great Blue Hole and Lighthouse Reef. Descend to dramatic limestone formations, visit a booby rookery on Half Moon Caye, and finish among colorful coral gardens at Long Caye.
Head offshore from San Pedro for a full-day, three-tank dive at the Great Blue Hole and Lighthouse Reef. Descend to dramatic limestone formations, visit a booby rookery on Half Moon Caye, and finish among colorful coral gardens at Long Caye.
A sea-bright morning in San Pedro sends you out across an electric blue Caribbean; the boat hums, the horizon widens, and two hours later the ocean drops away into a perfect, cavernous dark — the Great Blue Hole. Descend here to 130 ft (40 m) and swim beneath fossilized stalactites, the limestone a record of ancient sea levels and Pleistocene geology that give the sinkhole its dramatic profile.
Verified experiences and guided adventures in the surrounding area.
Operated by Amigos Del Mar Dive Shop · San Pedro, Belize District
A sea-bright morning in San Pedro sends you out across an electric blue Caribbean; the boat hums, the horizon widens, and two hours later the ocean drops away into a perfect, cavernous dark — the Great Blue Hole. Descend here to 130 ft (40 m) and swim beneath fossilized stalactites, the limestone a record of ancient sea levels and Pleistocene geology that give the sinkhole its dramatic profile.
This is more than a geological show: Jacques Cousteau helped popularize the site in the 1970s, and the surrounding Lighthouse Reef Atoll is a living reef system shaped by currents, coral growth, and protection measures around Half Moon Caye. On the surface, the tiny island hosts a rookery of red-footed boobies and scrub that tells a quieter cultural story of local conservation and tourism.
Practicalities: the trip is a full 12-hour day with three guided dives (Blue Hole at ~130 ft, Half Moon Caye Wall ~60 ft, Long Caye Aquarium ~60 ft). Open Water certification or higher is required and you should have logged a dive within six months; a dive computer, redundant air planning, and DAN insurance are strongly recommended. Expect water temperatures in the high 70s–low 80s°F (26–28°C), variable visibility depending on plankton and swell, and the possibility of reef sharks on deeper profiles.
Plan for seasickness meds, sun protection while topside, and strict no-fly timing after diving. The itinerary includes breakfast, lunch, and beverages; bring a personal mask and a charged dive computer for the day.
challenging.
10–12 hours.
Moderate to strong cardiovascular fitness recommended; managing multiple dives, ladder climbs, and boat motion requires stamina.
Yes—Open Water certification or higher is required, and operators typically demand a recent logged dive within six months.
Yes—snorkelers are usually welcome for surface activities, but the main itinerary centers on certified divers.
Plan for roughly 10–12 hours including a 2–2.5 hour boat ride each way, three dives, lunch, and surface intervals.
Trips may be canceled for bad weather or insufficient divers; the standard policy allows a full refund if canceled at least 24 hours prior.
The Great Blue Hole formed as a collapsed karst limestone cave during lower sea levels; Jacques Cousteau brought global attention to the site in the 1970s.
Lighthouse Reef Atoll is part of a protected marine area with ongoing reef restoration and nesting protections on Half Moon Caye—avoid touching coral and respect bird rookeries.
Amigos Del Mar Dive Shop operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




A sea-bright morning in San Pedro sends you out across an electric blue Caribbean; the boat hums, the horizon widens, and two hours later the ocean drops away into a perfect, cavernous dark — the Great Blue Hole. Descend here to 130 ft (40 m) and swim beneath fossilized stalactites, the limestone a record of ancient sea levels and Pleistocene geology that give the sinkhole its dramatic profile.
A sea-bright morning in San Pedro sends you out across an electric blue Caribbean; the boat hums, the horizon widens, and two hours later the ocean drops away into a perfect, cavernous dark — the Great Blue Hole. Descend here to 130 ft (40 m) and swim beneath fossilized stalactites, the limestone a record of ancient sea levels and Pleistocene geology that give the sinkhole its dramatic profile.
This is more than a geological show: Jacques Cousteau helped popularize the site in the 1970s, and the surrounding Lighthouse Reef Atoll is a living reef system shaped by currents, coral growth, and protection measures around Half Moon Caye. On the surface, the tiny island hosts a rookery of red-footed boobies and scrub that tells a quieter cultural story of local conservation and tourism.
Practicalities: the trip is a full 12-hour day with three guided dives (Blue Hole at ~130 ft, Half Moon Caye Wall ~60 ft, Long Caye Aquarium ~60 ft). Open Water certification or higher is required and you should have logged a dive within six months; a dive computer, redundant air planning, and DAN insurance are strongly recommended. Expect water temperatures in the high 70s–low 80s°F (26–28°C), variable visibility depending on plankton and swell, and the possibility of reef sharks on deeper profiles.
Plan for seasickness meds, sun protection while topside, and strict no-fly timing after diving. The itinerary includes breakfast, lunch, and beverages; bring a personal mask and a charged dive computer for the day.