Views of a waterfall in Fortuna Bay on the northern coast of South Georgia, Southern Ocean, Polar Regions

Kamares beach, high angle view, Kamares, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Lake Sandoval, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Extreme tidal range shown here at low tide as found on Bigge Island, Kimberley, Western Australia, Australia, Pacific

Kleftiko rock formations, Kleftiko, Milos Island, Cyclades Islands, Greek Islands, Greece, Europe

Aerial of Pia glacier, Tierra del Fuego, Chile, South America

Deep blue lake in the mountains above Pia glacier, Tierra del Fuego, Chile, South America

Aerial of Wulaia Bay, Tierra del Fuego, Chile, South America

Aerial of Potter glacier, Tierra del Fuego, Chile, South America

Aerial of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Little hamlet near the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions

Mountainous landscape, Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Aerial of Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America

Belcher glacier, Devon island, Nunavut, Canadian Arctic, Canada, North America

Lake Sandoval and Aguaje palms, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Limestone cliffs at Dunraven Bay, Southerndown, Bridgend, South Wales, United Kingdom, Europe

Nisyros volcano, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe

Ainsworth Bay, Alberto de Agostini National Park, Tierra del Fuego, Patagonia, Chile, South America

Riserva Naturale di Punta Bianca, Palma di Montechiaro, Agrigento, Sicily, Italy

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

View of beach scene and boat on the sea at Porto Vathy, Makriammos, Thassos, Aegean Sea, Greek Islands, Greece, Europe

View of turquoise sea at Chrysi Ammoudia, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Views of the Vasilievbreen (Vasiliev Glacier), in Isbukta (Ice Bay) near the island of Spitsbergen in Svalbard, Norway, Arctic, Europe

Mountainous fjord, Kulusuk, Greenland, Denmark, Polar Regions

Views of Fortuna Bay on the northern coast of South Georgia, Southern Ocean, Polar Regions

Panoramic aerial of Kulusuk fjord, Greenland, Denmark, Polar Regions

Aerial of the mountainous coastline around Kulusuk, Greenland, Polar Regions

Arctic desert around Grise Fjord, most northern community in America, Nunavut, Canadian Arctic, Canada, North America

Porphyry Basin Waterfall, San Juan National Forest, Colorado, United States of America, North America

Capilano Lake, Vancouver, British Columbia, Canada, North America

A view of Margerie Glacier against the Fairweather Range in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Alaska, United States of America, North America

Adult Weddell seal (Leptonychotes weddellii) hauled out on ice near the Antarctic Peninsula, Southern Ocean, Polar Regions

Aguila glacier, Tierra del Fuego, Chile, South America

Mount Etna, Sicily, Italy, Europe

Pitt Point, a volcanic tuff formation on San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Paradise Divide, Grand Mesa-Uncompahgre-Gunnison National Forest, Colorado, United States of America, North America

Parry's primrose (Primula parryi) growing in a stream, American Basin, Uncompahgre National Forest, Colorado, United States of America, North America

Sunset behind Mirror Lake, Gunnison National Forest, Colorado, United States of America, North America

Cascades, American Basin, Uncompahgre National Forest, Colorado, United States of America, North America

North Clear Creek Falls, Rio Grande National Forest, Colorado, United States of America, North America

Okavango Delta in Botswana, Africa

Tiny Red Goby (Pleurosicya sp) Two resting on coral. Mabul Island, Borneo, Malaysia (RR)

Split image of pristine coral reef and support ship, Rongelap, Marshall Islands, Micronesia, Pacific

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Palms and old pier in Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Split image of staghorn coral, Acropora sp., and island, Truk lagoon, Chuuk, Federated States of Micronesia, Pacific

Needle cuttlefish, Sepia aculeata, front view at night, Dumaguete, Negros Island, Philippines.

Nudibranch, Atlantis house reef, Dumaguete, Negros Island, Philippines.

False clown anemone fish, Amphiprion ocellaris, Dauin, Dumaguete, Negros Island, Philippines.

Pair of false clown anemonefish, Amphiprion ocellaris, in anemone, Daiun, Negros, Philippines.

Wave breaking over shallow coral reef, Ailuk atoll, Marshall Islands, Pacific

Riding a traditional outrigger canoe, Ailuk atoll, Marshall Islands, Pacific

Nudibranch, Jorunna funebris, feeding on blue sponge, Haliclona sp., Monkey beach, Puerto Galera, Mindoro, Philippines.

Cushion star, Culcita novaguineae, skin texture, Ailuk atoll, Marshall Islands, Pacific

Reef octopus, Octopus cyanea, eye and siphon detail, Rongelap, Marshall Islands, Micronesia

Clark's anemonefish, Amphiprion clarkii, unusual color variant, male, Dauin, Negros, Philippines..

Anemone fish, Amphiprion sp., Dumaguete, Negros Island, Philippines.

Split image of Marshalhese boy and coconut trees, Ailuk island, Ailuk atoll, Marshall Islands, Pacific

Family of false clown anemone fish, Amphiprion ocellaris, seeking refuge in sea anemone, Masaplod, Dumaguete, Negros Island, Philippines.

Starry night octopus, Octopus luteus, foraging on coral reef at night, Malapascua, Cebu, Philippines, Visayan Sea.

Common lionfish, Pterois volitans, blends in with a variety of soft corals and sponges, Cars, Dumaguete, Negros Island, Philippines.

Reef wall covered with soft corals and gorgonians, mainly orange cup coral, Tubastrea faulkneri, Verde Island, Philippines.

Family of false clown anemone fish, Amphiprion ocellaris, seeking refuge in sea anemone, Dumaguete, Negros Island, Philippines.

Split image of sand bottom and island, Rongelap, Marshall Islands, Micronesia

Pink hydrocoral (lace coral), Stylaster sp., Namu atoll, Marshall Islands (N. Pacific).

Family of false clown anemone fish, Amphiprion ocellaris, seeking refuge in sea anemone, Masaplod, Dumaguete, Negros Island, Philippines.

Mandarinfish, Synchiropus splendidus, male, Malapascua, Cebu, Philippines, Visayan Sea.

Nudibranch, Chromodoris magnifica, Dumaguete, Negros Island, Philippines.

Pair of wire coral gobies, Bryaninops yongei, on wire coral, Cirripathes anguina,Ailuk atoll, Marshall Islands, Pacific

Bluefin trevally, Caranx melampygus, Ailuk atoll, Marshall Islands, Pacific

Horseshoe clam, Hippopus hippopus, Rongelap, Marshall Islands, Micronesia

Saddled butterflyfish, Chaetodon ephippium, Namu atoll, Marshall Islands (N. Pacific).

Beaked Whale stranded on coral reef during low tide, Mesoplodon sp., Mili, Marshall Islands (N. Pacific)..

Split image of Smallspotted dart, Trachinotus baillonii, swimming along the sandy shore at dusk, Rongelap, Marshall Islands, Micronesia

Pink anemonefish on sea anemone, Amphiprion periderion, Rongelap, Marshall Islands (N. Pacific).

Fan coral, Subergorgia sp., and diver silhouette against he sun, Namu atoll, Marshall Islands (N. Pacific).

Ornate ghost pipefish, Solenostomus paradoxus, Dumaguete, Negros Island, Philippines.

Dorid nudibranch, Glossodoris averni, La Laguna, Puerto Galera, Mindoro, Philippines.

Broadband cuttlefish, Sepia latimanus, in sandy bottom, Gato Island, Cebu, Philippines.

Mushroom coral, Ctenactis sp., night, Dumaguete, Negros Island, Philippines.

Split image of staghorn coral, Acropora sp., and uninhabited island, Ailuk atoll, Marshall Islands, Pacific

Common lionfish, Pterois volitans, close-up, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Brown algae, Sargassum horneri and Undaria pinnatifida, Chusan, Ulleungdo, South Korea (East Sea or Sea of Japan).

Whitetip reef shark, Triaenodon obesus, Namu atoll, Marshall Islands (N. Pacific).

Red (Lace) coral, Distichopora violacea, feather stars, and juvenile gray reef shark, Carcharhinus amblyrhynchos, Ailuk atoll, Marshall Islands, Pacific

French angelfish, Pomacanthus paru, Ilha rata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Fluted giant clam, Tridacna squamosa, siphon detail, Namu atoll, Marshall Islands (Pacific).

Giant clam, Tridacna gigas, siphon detail, Rongelap, Marshall Islands, Micronesia

Pink anemone fish, Amphiprion periderion, on magnificent sea anemone, Heteractis magnifica, Dumaguete, Negros, Philippines.

Feather star, possibly Oxycomanthus bennetti, West Escarceo, Puerto Galera, Mindoro, Philippines.

Lake in the Mountains at Hochalpenstraße, Pinzgau, Salzburg, Austria

Elevated view of couple walking down windy road along river

Mature couple take photo on beach by mountain lake

Reflection of mountains and sun in Bow Lake

Mountain biker descends grassy meadow road in mountains