Scuba diving is an underwater activity that allows individuals to explore the ocean while using a self-contained underwater breathing apparatus, known as scuba. This equipment enables divers to breathe underwater and typically includes a tank filled with compressed air, a regulator, and a mask. Divers can experience marine life, coral reefs, and underwater landscapes, making it a popular recreational activity. To participate in scuba diving, individuals usually undergo training and certification through organizations like PADI or NAUI. These courses teach essential skills, safety procedures, and how to use diving equipment. Scuba diving can be enjoyed by people of various skill levels, from beginners to experienced divers.