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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.
There are ethnic groups around the world who have relied on diving to get food. Some of these humans can stay underwater for a very long time, he said. Diving mammals, such as this Galapagos sea lion, evolved adaptations allowing them to stay underwater for prolonged periods of time.