Onne van der Wal / Aerial view of yachts anchored in the Exumas. Bahamas, Caribbean, June 2009.
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Guy Edwardes / Shetland coastline with tombolo connecting to St Ninian's Isle, Shetland Isles, Scotland, UK. August 2014.
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Guy Edwardes / Tombolo connecting St Ninian's Isle to Shetland, Shetland Isles, Scotland, UK. August 2014.
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Roger Powell / Roseate spoonbills (Platalea ajaja) flock gathering on a sand bar, Cedar Key, Levy County, Florida, USA, April
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Onne van der Wal / Aerial view of islands and sand banks in the Exumas. Bahamas, Caribbean, June 2009.
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Onne van der Wal / Aerial view of yachts anchored in the Exumas. Bahamas, Caribbean, June 2009.
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Fernando Faciole / Harbour seals (Phoca vitulina) resting on sandbar at dusk. Hunafloi Bay, Strandir, Iceland. October.
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Tim Laman / Aerial view of the Jardine River, with islands and sandbars of different depths creating patterns. Northern Cape York Peninsula, Australia. . June 2012