Fakarava, UNESCO biosphere reserve, is an atoll : a ring of coral reef fringing the South-Pacific waters in Tuamotu. It is a very wild place where it is possible to observe an incredible marine biodiversity. If you are a diver consider that diving the Fakarava's passes is an amazing experience. Nevertheless more and more professional divers report that today, due to a high level of attendance, it is impossible to face the Grey sharks wall as it was observed only a few years ago.