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The Great Blue Hole, Belize

A world-renowned natural wonder and iconic marine sinkhole, part of Belize’s UNESCO Barrier Reef.

About The Great Blue Hole

Belize’s Iconic Underwater Marvel

The Great Blue Hole is one of Belize’s most iconic natural wonders; a spectacular marine sinkhole set within Lighthouse Reef Atoll and a true bucket-list destination.

This massive circular formation measures approximately 318 meters (1,043 feet) across and plunges to a depth of about 124 meters (407 feet). Its striking contrast between the deep indigo center and the surrounding turquoise reef makes it so distinct that it can even be seen from space.

Formed during the last ice age, the Blue Hole began as a limestone cave system that later collapsed and flooded as sea levels rose. Today, visitors experience its beauty in two unforgettable ways: certified divers descend into its mysterious depths to explore stalactites and marine life, while others choose a breathtaking aerial tour, flying above the atoll for a panoramic view of this perfectly formed natural wonder.

 

Aerial view of Great Blue Hole surrounded by coral reefs, turquoise ocean.

Blue Hole Highlights

Why Visit the Great Blue Hole

A transcendent spectacle for scuba divers, snorkelers, and aerial-view travelers alike.

Unique Formation

A flooded cave sinkhole formed during ancient ice ages periods.

01

Diving Legacy

Cousteau named it premier dive site featuring stalactites deep walls.

02

Aerial Views

Perfectly circular shape visible from scenic flights and helicopter tours.

03

UNESCO Status

Part of Belize Barrier Reef Reserve System UNESCO World Heritage.

04

Aerial view of the Great Blue Hole surrounded by vibrant coral reefs.

Tours & Experiences

Great Blue Hole Tours

Experience the Great Blue Hole through unforgettable full-day boat excursions or breathtaking scenic flights departing from San Pedro and Caye Caulker. Boat tours include reef snorkeling, crystal-clear waters, and vibrant marine life surrounding Lighthouse Reef.

Advanced certified divers can descend into the iconic sinkhole to explore stalactites and dramatic walls, while non-divers enjoy surface adventures. Scenic flights showcase the Blue Hole’s perfect circular formation from above, making this legendary natural wonder accessible, awe-inspiring, and memorable for every type of traveler.

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