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Volcanic crater (rano), Rano Kau, Easter Island, Chile
Old Windmill with volcanoes in background near Tefia, Fuerteventura, Canary Islands, Spain
Tourists ascending recent volcanic cone, Penguin Island, South Shetland Islands, Antarctica, Polar Regions
Yasur volcano, active volcano on island of Tanna, Vanuatu, South Pacific islands, Pacific
T'ai chi exercises at dawn, Agua volcano, Antigua, Guatemala, Central America
View of active volcano from helicopter, Big Island, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America
Moyogalpa port and Conception volcano, Ometepe island, Nicaragua, Central America
Observatory, Mauna Kea, Big Island, Hawaii, United States of America, North America
Mauna Kea, Big Island, Hawaii, United States of America, North America
Conception Volcano, Ometepe Island, Nicaragua, Central America
Visitors at an active andesite stratovolcano on White Island, North Island, New Zealand
Visitors watching mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Visitors at an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
The caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
Mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
Mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
Boiling mud at an active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Visitors to an active andesite stratovolcano on White Island, off the East side of North Island, New Zealand, Pacific
Volcano Concepcion, Isla de Ometepe, Ometepe Island, Lake Nicaragua, Nicaragua, Central America
Majestic night sky with Milky Way over a serene mountain landscape in the Teide National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Atlantic, Europe
The small port of Moyogalpa on Ometepe Island in Lake Nicaragua, Nicaragua, Central America
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Sign for Parque Nacional de Timanfaya, national park, designed by Cesar Manrique, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Food being cooked on volcanic grill at visitor centre, Parque Nacional de Timanfaya, national park, Lanzarote, Canary Islands, Atlantic, Europe
Nisyros volcano, high angle view, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Hikers are dwarfed by the volcanic Mount Ngauruhoe on the Tongariro Crossing trail, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
View over whitewashed houses to Monte Corona volcano cone, village of Haria, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Volcano cone and black volcanic soil farmland, Monta Tinache, near Tinajo, Lanzarote, Canary Islands, Spain, Atlantic, Europe
View from Mirador del Rio of ferry ship approaching Caleta del Sebo, La Graciosa island, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Graveyard and the Concepcion volcano on Ometepe island, Lake Nicaragua, Nicaragua, Central America
Mount Ruapehu, Ngauruhoe and Tongariro (active volcanoes) from Lake Taupo, North Island, New Zealand, Pacific
Volcano eruptions at the Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Tree house in a Banyan tree below the Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Tree house in a Banyan tree below the Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
View over Shark Bay below Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Aerial of Taupo Town and Mount Tauhara, Waikato River and Lake Taupo, North Island, New Zealand, Pacific
Geologists taking mineral samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Geologists taking mineral samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
View of Aeolian Islands archipelago from Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
View of Aeolian Islands archipelago from Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
People walking on Gran Cratere rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
People walking on Gran Cratere rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Mauna Kea, Big Island, Hawaii, United States of America, North America
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Nisyros volcano view, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Nisyros volcano, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Nikia village and Nisyros volcano in the distance, high anlgle view, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Nisyros volcano, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Volcanic landscape of solidified lava flows and distant cone volcanoes, near Yaiza, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Nisyros volcano view, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Volcano eruptions at the Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Mount Ngauruhoe Volcano summit climb, an extra on the Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Lava flowing from Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, The Big Island, Hawaii, United States of America, North America
White Island (Whakaari) active marine volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Observatory, Mauna Kea, Big Island, Hawaii, United States of America, North America
Mt Ngauruhoe volcano, beyond Red Crater, in the Tongariro National Park, Taupo, North Island, New Zealand
Tourist exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Canary Island Pines at Teide National Park, Pinus canariensis, Tenerife, Spain
Volcano Concepcion, Isla de Ometepe, Ometepe Island, Nicaragua, Central America
Observatory, Mauna Kea, Big Island, Hawaii, United States of America, North America
Volcano, Vulcan Agua, Antigua, Guatemala, Central America
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
White Island (Whakaari) active marine volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Sumeru volcano erupting, island of Java, Indonesia, Southeast Asia, Asia
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Canary Island Pines at Teide National Park, Pinus canariensis, Tenerife, Spain
Tourists looking at the Volcano crater at Deception Island, South Shetland Islands, Antarctica, Polar Regions
Crater of Kelimutu Volcano, 1640m, Flores Island, Indonesia, Southeast Asia, Asia
Volcano crater at Deception Island, South Shetland Islands, Antarctica, Polar Regions
Island view from Puyehue volcano, Lago Puyehue (Lake Puyehue), Chile, South America
Volcano Caldera de Gairia, Tuineje, Fuerteventura, Canary Islands, Spain, Europe
Volcano Caldera de Gairia, Tuineje, Fuerteventura, Canary Islands, Spain, Europe
Wolf Volcano at Isabela Island, Galapagos, Ecuador
View of Lake Toya, framed by autumn trees in the evening, and volcanic island in the middle of the lake, Abuta, Hokkaido, Japan, Asia
Mt Ngauruhoe, 2291m, youngest of the three volcanoes in the Tongariro National Park, North Island, New Zealand
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
Sulphur vents, Mount Asahidake, island of Hokkaido, Japan, Asia
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
Steam rising from side of Mount Tongariro, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Volcanic cones on top of Mauna Kea, Big Island, Hawaii, United States of America, Pacific
Isabela Island Giant Tortoise (Chelonoidis niger vicina), Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador
Isabela Island Giant Tortoise (Chelonoidis niger vicina), Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador
Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador
Isabela Island Giant Tortoise (Chelonoidis niger vicina), Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador
Isabela Island Giant Tortoise (Chelonoidis niger vicina), Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador
Isabela Island Giant Tortoise (Chelonoidis niger vicina), Sierra Negra volcano, Isabela Island, Galapagos Islands, Ecuador