Pascal Kobeh / Sicklefin lemon shark (Negaprion acutidens) in the lagoon of Picard Island, Aldabra, Seychelles, Indian Ocean.

Hougaard Malan / Tropical beach, La Digue Island, Seychelles. October 2012.

Hougaard Malan / Rock formations on Anse Source d'Argent beach. La Digue Island, Seychelles. November, 2012.

Hougaard Malan / Rock formation on Anse Source d'Argent beach. La Digue Island, Seychelles. November, 2012.

Hougaard Malan / Rock formations in clear water on Anse Source d'Argent beach. La Digue Island, Seychelles. October, 2012.

Cheryl-Samantha Owen / Green-backed heron (Butorides striatus) jumping, Aldabra Atoll, Seychelles

Willem Kolvoort / View of Byoutier. a very small island in the Seychelles with a pristine beach. Byoutier, Seychelles March 2005

Huw Cordey / Marine litter - mostly shoes (flip flops) and plastic bottles washed up on shore with Aldabra giant tortoise (Aldabrachelys gigantea). Cinq Cases, Aldabra Island, Indian Ocean

Huw Cordey / Marine litter - mostly shoes flip flops) and plastic bottles washed up on shore with Aldabra giant tortoise (Aldabrachelys gigantea). Cinq Cases, Aldabra Island, Indian Ocean

Huw Cordey / Pathway made of plastic shoes ( flip flops) washed up on the beach and collected within 20 metres of the middle of the picture. In the background is a Aldabra giant tortoise (Aldabrachelys gigantea)...

Jordi Chias / Dead coral bleached by warm waters, Denis island, Seychelles Archipelago, Indian Ocean.

Jordi Chias / Powder blue surgeonfish (Acanthurus leucosternon) Denis island, Seychelles, Indian Ocean