Blue Hole / Belize

Blue Hole

Great Blue Hole is a giant marine cavity that is located in the center of the Lighthouse Reef in Belize. Great Blue Hole is one of the most interesting dive sites in the whole world. On the photos that were taken from the air the Great Blue Hole is seen as a dark blue spot that is 300m/984ft in diameter. This place has become popular after Jacques Yves Kusto researches in 1972. The scientist managed to prove that the Great Blue hole is a natural geological formation and one of the most extraordinary among other blue holes. This is a karst crater that was created during the collapse of clay caves, when the level of the world ocean has increased. Its walls are rather even and smooth. During the descent divers can see massive stalagmites and stalactites that are slightly inclined. At 70m/230ft depth there are underwater caves that are connected with small tunnels. Regardless of the fact that the Blue Hole’s depth can reach 140m/459ft, the divers with OWD certificate usually dive to 30m/99ft. It is hard to find interesting underwater inhabitants at a very large depth – the lack of oxygen is an obstacle for a variety of species. Deeper dives are available for experienced divers only. There are no currents and visibility can reach 60m196/ft.

Location: Caribbean Sea, center of the Lighthouse Reef in Belize

What to see: It is possible to see here giant groupers, nurse sharks, reef sharks, marine turtles and schools of small fish. There are plenty of crustaceous, corals and anemones on the reef that surrounds the Blue Hole.


Currents: none

Visibility: 10-60m/33-196ft

Season for diving: All year round. The water temperature varies between25-28C/77-82F


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