Adam White / Aerial view of island, showing land, sea and reef, Seychelles

Martin van Lokven / Hawksbill Sea Turtle (Eretmochelys imbricata), D'Arros Island, Seychelles

Massimiliano Magnante/ BIA / White Tern (Gygis alba) pair, Bird Island, Seychelles

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

Cheryl-Samantha Owen / Spinner dolphins (Stenella longirostris) swimming just below surface, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Looking down on sea grass, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Great frigate birds (Fregata minor) sitting in tree, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) swimming in shallow crystal clear water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) fins at frenzied surface, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) group swimming in shallow turquoise sea, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus), Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Aldabra giant tortoise (Geochelone gigantea) on beach at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Green turtles (Chelonia mydas) pair mating near surface, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) approaching Grey heron (Ardea cinerea) in shallow water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reefs sharks (Carcharhinus melanopterus) dorsal fins visible at sea surface at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) in shallow water gathering very close to shore, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) swimming in shallow crystal clear water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) split level view of group hunting at dusk, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Striated green heron (Butorides striatus) jumping to catch dragonfly prey, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) swimming in shallows at sunset, Aldabra Atoll, Seychelles, Indian Ocean

David Noton / Dramatic evening sky over Anse Source d'Argent, La Digue. Seychelles. February 2007.

Pete Oxford / Granite outcrop, Source d'argent beach, La Digue, Seychelles. Coastal landscape

Pete Oxford / Coconut crab (Bigrus latro) on tree trunk, Aldabra, Seychelles.

Gavin Hellier / Anse Severe Beach and Palm Tree at sunset, La Digue Island, Seychelles, Indian Ocean

Norbert Wu / Granite Island and Coconut Palms, unique idyllic islands, Seychelles, Indian Ocean

Norbert Wu / Whale Shark (Rhincodon typus) largest fish in the world to 60 feet, Seychelles

Norbert Wu / Coral sand beaches with unique granite formations, Seychelles

Norbert Wu / Coral sand beaches with unique granite formations, Seychelles

Gavin Hellier / Tropical sea and beach, Seychelles, Indian Ocean

Pete Oxford / Coconut (Robber) crab climbing coconut tree, Aldabra Seychelles

Adam White / Giant tortoise {Geochelone elephantopus} wave breaking on back, Aldabra, Seychelles

Pete Oxford / Coconut palm trees and granite outcrop. Sourse d'Argent beach, Las Digue, Seychelles.

Gavin Hellier / Anse Severe Beach and Palm Tree, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Anse Source d'Argent Beach, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Granite Boulder at Anse Source d'Argent beach, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Anse Source d'Argent Beach, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Anse source d'Argent Beach, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Anse Source d'Argent Beach, La Digue Island Seychelles, Indian Ocean

Gavin Hellier / Anse Source d'Argent Beach with granite boulders, La Digue Island Seychelles, Indian Ocean

Gavin Hellier / Anse Source d'Argent Beach with granite boulders, La Digue Island, Seychelles, Indian Ocean

Gavin Hellier / Sea Sand & Sky in stormy weather, Petite Anse beach, Mahe Island, Seychelles, Indian Ocean

Pete Oxford / Hawksbill turtle {Eretmochelys imbricata} diving from sea's surface, Poive Is, Amirantes Group, Seychelles

Martin van Lokven / Coconut Palm (Cocos nucifera) trees on beach, D'Arros Island, Seychelles

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

Franco Banfi / Great frigatebird (Frigata minor), male with inflated gular sac, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Giant squirrelfish (Sargocentron spiniferum), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Potato cod grouper (Epinephelus tukula), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Flatworm (Maiazoon orsaki) on sponge, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Nudibranch (Goniobranchus geminus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Magnificent sea anemone (Heteractis magnifica), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Tasseled scorpionfish (Scorpaenopsis oxycephala), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Tasseled scorpionfish (Scorpaenopsis oxycephala), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Variegated lizardfish (Synodus variegatus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Nalolo blenny (Ecsenius nalolo), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Jewel Basslet (Pseudanthias squamipinnis), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Spotted hawkfish (Cirrhitichthys oxycephalus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Midas blenny, Ecsenius midas, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Geometric moray (Gymnothorax griseus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Scuba diver with honeycomb moray eel (Gymnothorax favagineus) at burrow, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Scuba diver and sea cucumber (Thelenota ananas), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Blue-fin trevally (Caranx melampygus) and scuba diver with soft coral (Dendronephthya), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Soft coral (Dendronephthya), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Soft coral (Dendronephthya), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Gorgonian fan (Subergorgia mollis) with jewel basslet (Pseudanthias squamipinnis), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Gorgonian fan (Subergorgia mollis) with scuba diver in background, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Blacktip reef shark (Carcharhinus melanopterus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Blacktip reef shark (Carcharhinus melanopterus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Blacktip reef shark (Carcharhinus melanopterus), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Blacktip reef shark (Carcharhinus melanopterus) under the Zodiac, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Coconut crab (Birgus latro) on a palm trunk, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Giant tortoises (Geochelone gigantea), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Giant tortoise (Geochelone gigantea), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Red-footed booby (Sula Sula), close up of feet, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Red-footed booby (Sula Sula), Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Aldabra Rail (Dryolimnas aldabranus), the last flightless bird of the tropical western Indian Ocean islands, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian.

Franco Banfi / Small island inside the lagoon, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Small island inside the lagoon, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Masked booby (Sula dactylatra) with chick, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Masked booby (Sula dactylatra) with chick, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Woman snorkeling near beach, Seychelles, Indian Ocean.

Franco Banfi / Woman snorkeling near a beach, Seychelles, Indian Ocean.

Franco Banfi / Woman walking between palms on Astove island, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Franco Banfi / Bijoutier island, close to Alphonse group, Aldabra Atoll, Natural World Heritage Site, Seychelles, Indian Ocean.

Martin Gabriel / Pristine Coco de mer forest (Lodoicea maldivica), Vallee de Mai Nature Reserve and UNESCO World Heritage Site, Praslin Island, Republic of Seychelles

Martin Gabriel / Seed of a Coco de mer palm tree (Lodoicea maldivica), the biggest seed in the plant kingdom. Vallee de Mai Nature Reserve and UNESCO World Heritage Site, Praslin Island, Republic of Seychelles

Martin Gabriel / Coco de mer palm tree (Lodoicea maldivica) with fruits, Victoria Botanical Garden, Mahe Island, Republic of Seychelles