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27 results found

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

Female tourist on boardwalk by the Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Mud pots, fumaroles and dormant Volcan Santa Clara at the San Jacinto volcanic thermal area north of Leon, Leon, Nicaragua, Central America

Blue water in geothermal pool with water spout from Strokkur Geysir visible in the distance, Geysir, near Reykjavik, Iceland, Polar Regions

Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Female tourist on boardwalk by the Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Mimosa rocks and rock pool in natural bay composed of volcanic Rhyolite rock, around 360 million years old, Mimosa Rocks National Park, New South Wales, Australia, Pacific

Very green acid crater in the 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

Crested Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

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

Morning Glory Pool, Upper Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

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

Pool fitted in the volcanic lava flow, Garachico, village on the North coast, Tenerife, Canary Islands, Spain, Atlantic Ocean, Europe

Ubinas volcano reflected in a pool at salt flats, Salinas y Aguada Blanca National Reserve, Arequipa Province, Arequipa Region, Peru, South America

Furnas Valley, a site of bubbling hot springs and fumaroles on the Azorean capital island of Sao Miguel, Azores, Portugal, Europe

Coastal swimming pools near mountains at Porto da Cruz, Machico District, Madeira, Portugal, Atlantic, Europe

Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Reflecting pools and volcanic basalt rock boulders in the water, Devil Dog Canyon, near Drake, Arizona, United States of America, North America

Natural salt water swimming pools made of volcanic rock, Porto Moniz, Madeira island, Portugal, Atlantic, Europe

Natural pools formed by volcanic lava filled with crystal-clear sea water, Porto Moniz, Madeira island, Portugal, Atlantic, Europe

Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America

Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America

Blisters measuring about 10 cm across in boiling mud pool, Mud volcano, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America (U.S.A.), North America

Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America

Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

Women standing at the Laguna Verde and Licancabur volcano, Bolivia near the border to Chile, South America

Blue water pool, Bl√°hver hot spring, Hveravellir high-temperature or geothermal region, Highlands, Iceland, Europe

Demonstration of the geothermal energy in the National park Timanfaya, Lanzarote, Canary Islands, Spain

El Hierro Island. Canary Islands, landscape of volcanic rocks in the natural pool of Charco Azul in the orange sunset

Beach and swimming pools at Furna de Santo Antonio. Pico Island, an island in the Azores (Ilhas dos Acores) in the Atlantic ocean. The Azores are an autonomous region of Portugal. Europe, Portugal, Azores

A blue coloured boiling hot mud pool emanates steam as the sunset colours the sky orange, in Hverarâândor Hverir Geothermal Area at Namaskard Pass, North Iceland.

Acidic pools, mineral formations, salt deposits in the crater of Dallol Volcano, Danakil Depression, Afar Region, Ethiopia

Acidic pools, mineral formations, salt deposits in the crater of Dallol Volcano, Danakil Depression, Afar Region, Ethiopia

The Kerid Volcano Crater is a popular tourist attraction on the Golden Circle route in Western Iceland, Iceland

Hawaii, Big Island, Hawaii Volcanoes National Park, Pahoehoe glowing lava flow, river like smoke in background.

Hawaii, Big Island, near Kalapana, View from above of smoking pahoehoe lava flow into Pacific Ocean.