Ian Jenkinson asked about it: What constitutes the minimum equipment that recreational divers should have and use on every dive? To some degree, this will be a factor of the environment and the purpose of the dive. Divers in cold water require more thermal protection than divers in warm water.

Wayne Hemrick asked about it: Scuba diving has been a popular pastime since the 1940s.  It was noted seaman and adventurer Jacques-Yves Cousteau and Emile Gagnan who first created the Aqua-Lung, which was the first type of commercially available scuba diving equipment.  Denver divers will