The Great Blue Hole...

 The great blue hole is a very big marine hole of the coast of Belize .It is a part of Balize barrier reef reserve system and it is a world heritage site of UNESCO.In 2012  discovery channel ranked the great blue hole as the no. One on it's list of top ten amezing place on earth .It started to form about 150000 years ago .When the glacier are melted the water level rose up and thus the caves were flooded and its roof collapsed thus forming a unique hole.So its name is the great blue hole .There are many small islands are present inside it .In the north of the great blue hole Mexico'S Yucatan peninsula is present.

It was first discovered by Jacques Cousteau. in 1971 he bought his ship to the hole .He also declared it top five scuba diving sites in the world .The origin of hole is karst limestone.In initial stage the great blue hole was 125 m(410ft) but in 1997 measured the depth about 124 m(407ft).The blue hole is circular in shape and 318m(1043ft) in diameter .Inside the blue hole many caves are present .The scuba divers had to be certified inside the cave diving and mixing gas.

This is a popular place for scuba divers who dives in Crystal clear water and see several combination of creature of fauna and Flora such as reef shark, juvenile fish species,bull shark,mid night parrot fish, hammer heads inside the caves of the great blue hole .The scenery and view of cave of the hole is very beautiful for its natural creature in clear water.so every scuba divers should be traveling for this place and enjoying the diving.