Leisure diving, also known as recreational diving, is a popular underwater activity where individuals explore marine environments for enjoyment rather than for professional or scientific purposes. Divers typically use equipment such as scuba gear, which includes a tank of compressed air, a mask, and fins, allowing them to breathe and navigate underwater. This activity can take place in various locations, including coral reefs, shipwrecks, and underwater caves. Many divers participate in guided tours or courses offered by organizations like PADI (Professional Association of Diving Instructors) to enhance their skills and safety while enjoying the beauty of the underwater world.