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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.
Diving equipment is equipment used by underwater divers to make diving activities possible, easier, safer and/or more comfortable. This may be equipment primarily intended for this purpose, or equipment intended for other purposes which is found to be suitable for diving use. 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.