The purpose of the PADI Underwater Naturalist course is to create an awareness of the aquatic world, and evoke a sense of responsibility for the privilege of diving. We discuss the basics of underwater life, habitats, interaction with divers, but not as a biology class format. It is intended that the participant find out more about the aquatic world through independent study or through other educational programs. Particular attention is paid to dispelling myths about potentially harmful marine life such as sharks, eels, and jellyfish. Two dives are needed, with the only prerequisite being PADI Open Water Certification or higher.