The Seven Underwater Wonders of the World was a list drawn up by CEDAM International, an American-based non-profit group for divers, dedicated to ocean preservation and research.

In 1989 CEDAM brought together a panel of marine scientists, including Dr. Eugenie Clark, to pick underwater areas which they considered to be worthy of protection. The results were announced at The National Aquarium in Washington DC by actor Lloyd Bridges, who played in a TV show titled Sea Hunt:^{[19] [20]}