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Aerial of the crater of Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Cruise ship anchoring in the volcanic crater of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Mt Ngauruhoe volcano, beyond Red Crater, in the Tongariro National Park, Taupo, North Island, New Zealand
Observatory, Mauna Kea, Big Island, Hawaii, United States of America, North America
Volcano, Vulcan Agua, Antigua, Guatemala, Central America
Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific
Wai-O-Tapu Thermal Wonderland, Rotorua, North Island New Zealand, Pacific
Geoactive thermal pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific
The colourful multi hued Champagne Pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific
Observatory, Mauna Kea, Big Island, Hawaii, United States of America, North America
Cruise ship anchoring in the volcanic crater of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Coloured rocks at the volcanic crater, Deception Island, South Shetland Islands, Antarctica, Polar Regions
Pretty black sand volcanic beach, Epi island, Shepherd Islands, Vanuatu, Pacific
Sumeru volcano erupting, island of Java, Indonesia, Southeast Asia, Asia
Teide National Park, Mount Teide (Pico de Teide), Tenerife, Canary Islands, Spain
The Volcanic Tongariro Crossing, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Road leading to Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Geothermal river in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Overlooking recent lava flow on Heimaey Island, Iceland, Polar Regions
View over Lake Rotomahana, Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Island view from Puyehue volcano, Lago Puyehue (Lake Puyehue), Chile, South America
Cruise ship anchoring in the volcanic crater of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Aerial of Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Ice shelfs at the entrance of the volcanic island of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Geothermal river in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Volcanic Island San Benedicto, Revillagigedo Islands, Mexico
Volcanic landscape, Lobos Island, Fuerteventura, Canary Islands, Spain
Volcanic landscape, Lobos Island, Fuerteventura, Canary Islands, Spain
One of the Emerald Lakes, explosion craters filled with mineral-tinted water, on Mount Tongariro in the Tongariro National Park on the central plateau, North Island, New Zealand
Mt Ngauruhoe, 2291m, youngest of the three volcanoes in the Tongariro National Park, North Island, New Zealand
Birdman petroglyphs at Orongo ceremonial village on rim of crater Rano Kau, offshore lie bird islands of Motu Kao Kao, Motu Iri and Motu Nui, Easter Island, Chile, Pacific
Volcanic peaks of the Pitons, Soufriere Bay, St. Lucia, Caribbean, West Indies, Central America
Aerial of the island of Annobon, Equatorial Guinea, Africa
Aerial of the island of Annobon, Equatorial Guinea, Africa
Aerial of the volcanic crater with Lake Mazafim, island of Annobon, Equatorial Guinea, Africa
Aerial of Palmar beach on the island of Annobon, Equatorial Guinea, Africa
Road across a volcanic crater, with small buildings in the distance, inland on the island of Sao Vicente, Republic of Cape Verde Islands, Atlantic, Africa
Exterior of old windmill in volcanic landscape, near Tiscamanita, Fuerteventura, Canary Islands, Spain, Europe
The volcanic lake Lagoa do Congro with its emerald water, Sao Miguel Island, Azores Islands, Portugal, Atlantic, Europe
Miradouro do Cerrado das Freiras viewpoint on the huge volcanic crater that is now Lagoa Azul on Sao Miguel island, Azores Islands, Portugal, Atlantic, Europe
Sulphur vents, Mount Asahidake, island of Hokkaido, Japan, Asia
Oia village and red volcanic rocks, Oia, island of Santorini (Thira), Cyclades Islands, Greek Islands, Greece, Europe
Sarakiniko volcanic rock formations at sunset, island of Milos, Cyclades, Greek Islands, Greece, Europe
Fog shrouds the volcanic mountains surrounding Cova de Paul on Santo Antao Island, Cape Verde, Africa
A view of the volcanic crater of Cova de Paul on Santo Antao Island, Cape Verde, Africa
A view of the volcanic mountains surrounding Cova de Paul on Santo Antao Island, Cape Verde, Africa
Aerial view of volcanic landscape and Mauna Kea, 4207m, Big Island, Hawaii, United States of America, North America
Volcanic landscape, Mauna Loa, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Big Island, Hawaii, United States of America, North America
Volcanic cones on top of Mauna Kea, Big Island, Hawaii, United States of America, Pacific
Wind-surfer off Playa de La Barca, Costa Calma, on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
The dramatic black beach of Playa Pozo Negro on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Detail of an Agave plant on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Two people at Mirador de Vallebron looking towards Tindaya volcano on the island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Molino de Tefia on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Small fishing boats on Playa Ajuy on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, the location featured in the 2003 film Master and Commander, Galapagos islands, UNESCO World Heritage Site, Ecuador, South America
Church of Our Lady of Candelaria in La Oliva on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Volcanic landscape, Hawaii silversword (Argyroxiphium sandwicense) endemic, Haleakala National Park, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape at sunrise, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Haleakala National Park, volcanic landscape, Maui Island, Hawaii, United States of America, North America
Volcanic landscape, Hawaii silversword (Argyroxiphium sandwicense) endemic, Haleakala National Park, Maui Island, Hawaii, United States of America, North America
Volcanic landscape, Hawaii silversword (Argyroxiphium sandwicense) endemic, Haleakala National Park, Maui Island, Hawaii, United States of America, North America
A view of the volcanic mountains surrounding Cova de Paul on Santo Antao Island, Cape Verde, Africa
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
Wild Galapagos giant tortoise (Geochelone elephantopus) at Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Scenic view of Leon Dormido (Sleeping Lion) Island off San Cristobal Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Lava and ash floes in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Lava lizard (Microlophus spp) courtship behavior in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America
The peak of Concepcion volcano and a black sand beach on Ometepe Island, Lake Nicaragua, Nicaragua, Central America
Galapagos Land Iguana (Conolophus subcristatus), large lizard can can grow to five feet long and live for 60 years, South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Rempart river gorges viewed from the belvedere Nez-de-Boeuf on the road to Piton de la Fournaise, Reunion
Hikers inside the caldera Enclos Fouque, Piton de la Fournaise, Reunion
Small crater of Formica Leo volcano in caldera Enclos Fouque near Piton de la Fournaise, Reunion
Hikers inside the caldera Enclos Fouque, Piton de la Fournaise, Reunion
Landscape around the road to the Piton de la Fournaise, Reunion
Woman walking on cold lava flow, Le Grand Brule Coast, Reunion
Fern (nephrolepis abrupta) and boehmeria (boehmeria penduliflora), Le Grand Brule, Reunion
Anse des Cascades, Sainte-Rose, Reunion
Le Grand Brule Coast, Reunion
Aerial view, Cilaos Cirque, Reunion
Salazie at the foot of the Piton of Anchaing, Reunion
Piton de la Fournaise volcano, Reunion
Tree fern in the Plaine des Caffres, Reunion
Grand Etang is the largest lake of the island, Reunion
Cirque (caldera) of Mafate, Reunion
Aerial roots of Common screwpine (Pandanus utilis), Reunion
View of massive die-off of black triggerfish on the beach on Ascension Island in the southern tropical Atlantic Ocean, South Atlantic Ocean