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Ice shelfs at the entrance of the volcanic island of Deception Island, South Shetland Islands, Antarctica, Polar Regions

Cruise ship anchoring in the volcanic crater of Deception Island, South Shetland Islands, Antarctica, Polar Regions

Frying Pan Lake,the largest hot spring in the world, Waimangu Volcanic Valley, North Island, New Zealand, Pacific

Road leading to Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific

The colourful multi hued Champagne Pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific

Mt Ngauruhoe volcano, beyond Red Crater, in the Tongariro National Park, Taupo, North Island, New Zealand

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

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

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

Exterior of old windmill in volcanic landscape, near Tiscamanita, Fuerteventura, Canary Islands, Spain, 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

Two people at Mirador de Vallebron looking towards Tindaya volcano on the island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe

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 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) in the Galapagos Islands 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 endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Huge waves breaking on the beach at Ascension Island in the Tropical Atlantic Ocean, South Atlantic Ocean

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. Tiwu Nua Muri Kofah (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. A crater wall separates Tiwu Nua Muri Koo Fai (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. Tiwu Nua Muri Koo Fai (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

November 28, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible against blue night sky.

November 27, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible.

November 25, 2012 - Extrusion of lava through lava plug on top of conduit leads to small glowing rockfalls. Batu Tara volcano, Komba Island, Indonesia.

November 26, 2012 - Powerful explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible.

November 26, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible.

November 25, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible.

November 26, 2012 - Explosive strombolian type eruption of Batu Tara volcano, Komba Island, Indonesia. Trajectories of red glowing lava bombs are visible.

November 2007 - Aerial view of White Island (Whakaari) volcano with central acidic crater lake, Bay of Plenty, New Zealand.

Aloe arborescens on edge of cliff, Quinta do Furao, Santana, North coast, Madeira island, Atlantic Ocean, Portugal

Construction of traditional style Batak house with bamboo scaffolding, beside the volcanic Lake Toba, Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia

Rice paddy fields, with heavy monsoon clouds gathering over volcanic crater hills across Lake Toba from Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia

Rice paddy fields, with heavy monsoon clouds gathering over volcanic crater hills across Lake Toba from Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia

Construction of traditional style Batak house with bamboo scaffolding, beside the volcanic Lake Toba, Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia

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

view of Volcanoes and the Volcanic landscape with the Atlantic Ocean in the Timanfaya national park in Lanzarote in the Canary Islands, Spain

Montana Arena cone at sunset, one of a chain of volcanoes south of Corralejo, Villaverde, Fuerteventura, Canary Islands, Spain, Europe

View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, Europe

Lobos Island, a nature reserve and La Caldera volcano, just north of this resort, Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Filicudi Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe

People walking through fumaroles on Volcano Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe