Deep diving is a specialized form of scuba diving that involves descending to significant depths, typically beyond 60 feet (18 meters). Divers use advanced techniques and equipment, such as mixed gases, to manage the increased pressure and avoid risks like decompression sickness. Training and certification are essential for safety, often provided by organizations like PADI or NAUI. This activity allows divers to explore underwater environments that are less accessible, such as shipwrecks and unique marine ecosystems. Deep diving requires careful planning, including dive tables and safety stops, to ensure a safe ascent and minimize the risk of injury.