![Illustration of an atoll, a ring-shaped island formed from coral reef that encircles a lagoon Stock Photo - Alamy Illustration of an atoll, a ring-shaped island formed from coral reef that encircles a lagoon Stock Photo - Alamy](https://l450v.alamy.com/450v/2jk2t2b/illustration-of-an-atoll-a-ring-shaped-island-formed-from-coral-reef-that-encircles-a-lagoon-2jk2t2b.jpg)
Illustration of an atoll, a ring-shaped island formed from coral reef that encircles a lagoon Stock Photo - Alamy
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Ring Of Coral Islands In The Seychelles Described By Sir David Attenborough As 'one Of The World's Greatest Surviving Natural Treasures' Is Being Destroyed By Plastic Pollution, Study Finds | FundingtheOcean.org
![SERIOUSLY STRANGE on Twitter: "A ring-shaped island known as Tikehau, located in the Pacific Ocean. https://t.co/SO0tdEIi37" / Twitter SERIOUSLY STRANGE on Twitter: "A ring-shaped island known as Tikehau, located in the Pacific Ocean. https://t.co/SO0tdEIi37" / Twitter](https://pbs.twimg.com/media/CsUSAtxVUAAXM15.jpg)