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Types of Recreational Underwater Diving. Recreational diving or sport diving is a type of diving that uses SCUBA equipment for the purpose of leisure and enjoyment. There are many types of scuba diving and Philippines is blessed to have the great places for almost all of them. Cavern diving â diving within the entrance of a cave, where light is still visible.
The fundamental item of diving equipment used by divers is underwater breathing apparatus, such as scuba equipment, and surface supplied diving equipment, but there are other important pieces of equipment that make diving safer, more convenient or more efficient. Rebreather, closed-circuit or semi-closed-circuit scuba. 2  Free diving or breathhold diving, where the diver completes the dive on a single breath of air taken at the surface before the dive. 3  Snorkel allows breathing at the surface with the face submerged, and is used as an adjunct to free diving and scuba.