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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
Ice shelfs at the entrance of the volcanic island of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Caldeira and Bromo at 2329 m, and Semeru at 3676 m, volcanoes on Java, Indonesia, Southeast Asia, Asia
Hellen Lake with Mount Lassen, 3187 m, in the background, Lassen Volcanic National Park, California, United States of America, North America
The colourful multi hued Champagne Pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific
Vik black volcanic sand beach, Vik, Iceland, Polar Regions
Glassy pieces of ice on volcanic black sand beach at sunrise, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Panoramic view of Vestrahorn Mountain range reflecting in shallows of black volcanic beach, Stokksnes, South Iceland, Polar Regions
Iceberg at sunrise on Jokulsarlon Beach, a black volcanic sand beach in South East Iceland, Iceland, Polar Regions
Geoactive thermal pool, Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific
Brown Bluff huge volcanic basalt, Tabarin Peninsula, Antarctica, Polar Regions
Vestrahorn Mountain range and black volcanic beach, Stokksnes, South Iceland, Polar Regions
Overlooking recent lava flow on Heimaey Island, Iceland, Polar Regions
Quilotoa Loop, volcanic crater lake, Ecuador, South America
Petrohue Falls and Osorno Volcano, Vicente Perez Rosales National Park, Chilean Lake District, Chile, South America
Caldeira and Bromo, 2329 m, and Semeru, 3676 m, two volcanoes on Java, Indonesia, Southeast Asia, Asia
Pieces of glacier ice washed up on black volcanic sand beach at sunrise, near Jokulsarlon Glacial Lagoon, South Iceland, Polar Regions
Winter sunset on black volcanic sand beach looking towards rock stacks of Reynisdrangar, Vik, South Iceland, Polar Regions
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
Volcanic crater and moss-covered lava fields on the Snaefellsness Peninsula, Iceland, Polar Regions
Glacier on Brown Bluff huge volcanic basalt, Tabarin Peninsula, Antarctica, Polar Regions
Winter landscape on Volcano Hverfjall, Myvatn, Iceland, Polar Regions
Glassy pieces of ice on volcanic black sand beach at sunrise, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Caldeira and Bromo at 2329 m, and Semeru at 3676m, volcanoes on Java, Indonesia, Southeast Asia, Asia
Aerial of Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Llamas and alpacas grazing, Tunupa, Bolivia, South America
The volcanic rock in the turquoise lagoon of Bora Bora, Society Islands, French Polynesia, Pacific
Glassy pieces of ice on volcanic black sand beach at sunrise, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Icebergs at sunrise on Jokulsarlon Beach, a black volcanic sand beach in South East Iceland, Iceland, Polar Regions
Tourists watching Mount Bromo volcanic eruption, East Java, Indonesia, Southeast Asia, Asia
Caldeira and Bromo at 2329 m, and Semeru at 3676m, volcanoes on Java, Indonesia, Southeast Asia, Asia
Fishing boat on Lake Toba (Danau Toba), the largest volcanic lake in the world, North Sumatra, Indonesia, Southeast Asia, Asia
Glassy pieces of ice on volcanic black sand beach at sunrise, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Glassy pieces of ice on volcanic black sand beach at sunrise, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Geothermal river in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Bromo volcano crater on Java, Indonesia, Southeast Asia, Asia
Icebergs on a black sand volcanic beach next to the Jokulsarlon glacial lake in Vatnajokull National Park in southeast Iceland, Polar Regions
View over Lake Rotomahana, Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Ice shelfs at the entrance of the volcanic island of Deception Island, South Shetland Islands, Antarctica, Polar Regions
Clouds obscure the coastal villages below the dark volcanic mountains of Tenerife's north east coast at sunset, Canary Islands, Spain, Atlantic Ocean, Europe
Bromo volcano crater on Java, Indonesia, Southeast Asia, Asia
Geothermal river in the Waimangu Volcanic Valley, North Island, New Zealand, Pacific
Glassy pieces of ice on volcanic black sand beach with blurred waves, near Jokulsarlon Lagoon, South Iceland, Polar Regions
Fog shrouds the volcanic mountains surrounding 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
A view of the volcanic mountains surrounding Cova de Paul on Santo Antao Island, Cape Verde, Africa
Hot volcanic steam rising into monsoon clouds from Kawah Ratu (Queen's Crater) of Mount Tangkuban, Perahu, Bandung, Java, Indonesia, Southeast Asia, Asia
Hot volcanic steam rising into monsoon clouds from Kawah Ratu (Queen's Crater) of Mount Tangkuban, Perahu, Bandung, Java, Indonesia, Southeast Asia, Asia
Eldborg volcanic crater, declared a Protected Natural Monument in 1974, Iceland, Polar Regions
View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, 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
Gran Cratere (The Great Crater) and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Bathers enjoying the therapeutic benefits of the volcanic mud in the hot spring pool, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Lava lake in the caldera of the Ambrym volcano, Vanuatu, Pacific
Smoking Ambrym volcano, Vanuatu, Pacific
Smoking Ambrym volcano, Vanuatu, Pacific
Tiede National Park, UNESCO World Heritage Site, Tenerife, Canary Islands, Spain, Europe
Coast in El Medano, Tenerife Island, Canary Islands, Spain, Atlantic, Europe
Civita di Bagnoregio, a medieval town perched on volcanic rock, in the afternoon sun, Lazio, Italy, Europe
View over Lava field in Sullivan Bay towards Bartolome Island, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Two people at Mirador de Vallebron looking towards Tindaya volcano on the island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Encounter with dromedaries on the road that crosses the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Encounter with dromedaries on the road that crosses the Harrat volcanic plateau, AlUla, Medina Province, Saudi Arabia
Wind-surfer off Playa de La Barca, Costa Calma, on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Smoking Ambrym volcano, Vanuatu, Pacific
The surfers' paradise and volcanic black sand beach at Piha, showing Lion Rock, a monolith housing many Maori carvings, Auckland area, North Island, New Zealand, Pacific
Tourists visiting Lava field in Sullivan Bay, Santiago (James) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Palm trees growing in volcanic landscape in the Valley of a Thousand Palms, Haria, Lanzarote, Las Palmas Province, Canary Islands, Spain, Atlantic, Europe
The dramatic black beach of Playa Pozo Negro 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
Windsurfer off El Cotillo beach on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
People looking at view of Stromboli island from Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Hverfell Crater rising out of the Dimmuborgir Lava Field, Myvatn Region, Iceland, Polar Regions
Pato Beach, Puerto de la Cruz, Tenerife Island, Canary Islands, Spain, Atlantic, Europe
Boardwalk to Faro de Morro Jable on the volcanic Island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, Europe
Late afternoon light on the Crater Lake of the Crater Lake National Park, Oregon, United States of America, North America
Mount St. Helens with wild flowers, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America
Tourist camel train in red volcanic landscape, Timanfaya National Park, Yaiza, Lanzarote, Las Palmas Province, Canary Islands, Spain, Atlantic, Europe
Molino de Tefia on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Gran Cratere and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Paisaje Lunar, rock formation, The Moon Landscape, Vilaflor, Tenerife Island, Canary Islands, Spain, Europe
The volcanic Roque Nublo in the Nublo Rural Park in the centre of Gran Canaria seen from Barranco de Tejeda, Gran Canaria, Canary Islands, Spain, Atlantic, Europe
View across rolling volcanic landscape to the summit of Mount Etna, UNESCO World Heritage Site, at sunrise, Taormina, Messina, Sicily, Italy, Mediterranean, Europe
Barranco de las Penitas (Penitas Ravine) on the volcanic island of Fuerteventura, Canary Islands, Spain, Europe
Sierra Negra Volcano, Highlands of Isabela (Albemarle) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Sand textures on the dramatic Dunas de Corralejo in evening light on the volcanic island of Fuerteventura, Canary Islands, Spain, Europe
The Tongariro Crossing crosses 19 kilometers of the barren, volcanic desert, Tongariro National Park, UNESCO World Heritge Site, North Island, New Zealand, Pacific
Gran Cratere (The Large Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
The dramatic Dunas de Corralejo in evening light on the volcanic island of Fuerteventura, Canary Islands, Spain, Europe
Small fishing boats on Playa Ajuy on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Sulphur and fumaroles smoke on volcano Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Volcanic rock formations on the shores of White Lake, Tariat district, North Hangay province, Mongolia, Central Asia, Asia
Playa Puertito de Los Molinos on the volcanic island of Fuerteventura, Canary Islands, Spain, Atlantic, Europe
The dramatic Dunas de Corralejo in evening light on the volcanic island of Fuerteventura with mountains beyond, Fuerteventura, Canary Islands, Spain, Europe
Black Sand beach, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe