Scuba diving is an underwater activity that allows individuals to explore the ocean while breathing using a self-contained underwater breathing apparatus. Divers wear a tank filled with compressed air, which enables them to stay submerged for extended periods. This sport is popular for observing marine life, coral reefs, and underwater landscapes. To participate in scuba diving, individuals typically undergo training to learn safety procedures, equipment use, and underwater navigation. Certification agencies, such as PADI and NAUI, offer courses that teach these essential skills. Divers must also be aware of environmental factors, such as currents and water temperature, to ensure a safe experience.