page_title: Wonders of the World
section_title: Seven Wonders of the Underwater World
hierarchical_section_title: Wonders of the World / Recent lists / Seven Wonders of the Underwater World
caption_attribution_description: English: Two Pacific double-saddle butterflyfish, Chaetodon ulietensis amongst a backdrop of corals at Flynn Reef, Tennis Courts dive site. Part of the Great Barrier Reef Marine Park.
context_page_description: Various lists of the Wonders of the World have been compiled from antiquity to the present day, to catalogue the world's most spectacular natural wonders and human-built structures.
  The Seven Wonders of the Ancient World is the first known list of the most remarkable creations of classical antiquity; it was based on guidebooks popular among Hellenic sightseers and only includes works located around the Mediterranean rim and in Mesopotamia. The number seven was chosen because the Greeks believed it represented perfection and plenty, and because it was the number of the five planets known anciently, plus the sun and moon.
  Many similar lists have been made.
context_section_description: 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, star of TV's Sea Hunt:
  Palau.
  Belize Barrier Reef, Belize.
  Great Barrier Reef, Australia.
  Deep-Sea Vents.
  Galápagos Islands, Republic of Ecuador.
  Lake Baikal, Russia
  Northern Red Sea, bordered by Saudi Arabia and Yemen on the eastern shore, Egypt, Sudan, Eritrea and Djibouti on the western shore.
caption: The Great Barrier Reef
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