This subject conducted in association with the Townsville Hospital, presents the basic principles of underwater and hyperbaric medicine. A series of lectures, demonstrations and practical sessions highlight the taking of a diving history, performing a diving medical examination, decompression sickness, management of near-drowning, hypothermia, sinus and ear barotrauma, diving equipment, gases, physiology, diving hazards and diving techniques. A hyperbaric unit is located at the Townsville Hospital. Optional dives may be conducted. Marine hazards such as bites and stings are examined.