Some dive sites in Nosy Be are Tanikely, the Four Brothers, the Mummy and the Organ. Turtles, mantas, sting rays, schools of baracudas or king fishes and giant sea fans belong to the underwater world of Nosy Be and the surounding islands.

Nosy Tanikely
This is the best site to discover scuba diving or to get back in the water after several months of urban life as its average depth is only 12m., maximum 18m. This is a small bay with a beach and coral. It is sandy bottomed and gently sloping with various types of coral (elks horn, brain, stag horn). Turtles are commonly seen as well as octopus, blue spotted stingray, parrot fish, pipe fish, puffer fish, clown fish, angel fish, butterfly fish, bat fish and groupers.

The Four Brothers
Depth: 4m - 20m
These are a group of four large rocks, with underwater cliffs which are not especially deep therefore good for beginners ranging in depth from about 4-20 metres to the bottom. You can see turtles, cowries, blue spotted ray, lobsters, unicorn fish, scorpion fish and crocodile fish.

The Mummy
A shallow cliff so called as it resembles an Egyptian Mummy.

The Organ
So called as it has many ridges in the rock which resemble the pipes of an organ. Again there is a cliff face and the bottom is shallow. There is usually a current which makes it into a drift dive