Even more difficult are the kind of diving under the ice immersion. They are still carried out for entertainment, but are increasingly used for research purposes. Such immersion gives scientists the opportunity to observe and study the bizarre forms of ice, animals and vegetation of the cold environment. In addition to the traditional equipment, divers, under the ice divers needed nonicing regulators, ropes, cables insurance, transportation device, and even extra dry clothes.
Among the features of ice diving most remarkable long and hard training, good knowledge of safety, well-engagement of partners, and the choice of place of immersion, the knowledge of the specific procedures for each dive. Ice diving - this high-risk sports, safety diver here depends on the accuracy of planning, accuracy and consistency of the dive. Must be conceived actions of rescuers and medical teams.
Investigation of shipwrecks is also a peculiar kind of diving. These dives are carried out primarily for research purposes, to uncover the mysteries of death and raising the sunken vessels objects in search of treasure, and in order to come into contact with thousands of years of history buried in the depths of the sea.
The most exotic and possibly the most exciting type diving can rightfully be called submarine hunting. Competitions in this sport are held in open waters, and the winner is an athlete, to recruit more of the number and weight of fish.
