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17th Annual Smithsonian Magazine Photo Contest Travel
Blue hole

Atoll is an isolated coral reef structure surrounded by 800 m deep water. Sanganeb is the only atoll-like feature in the Red Sea, and a submerged and overhanging predator dominated coral reef ecosystem.

Photo Detail
Date Taken: 03.2017
Date Uploaded: 11.2019
Photo Location: Port Sudan, Sudan
Camera: Canon EOS 5D Mark II
Copyright: © Oxana Kamenskaya