718-1867 - Trees covered by orange trentepohlia, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1881 - Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1876 - Waiotapu thermal area, Rotorua, North Island, New Zealand, Pacific

718-1869 - Devil's Bath, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1879 - Devil's Bath, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1862 - Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1870 - Devil's Bath, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1868 - The Lady Knox Geyser, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1875 - Waiotapu thermal area, Rotorua, North Island, New Zealand, Pacific

718-1880 - Bubbling mud, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1878 - Oyster Pool, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

718-1872 - Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

1113-18008 - Landscape at Krafla Geothermal Area, Krafla, Nordurland Eystra, Iceland, Europe

1113-18123 - People bathing in hot thermal water, Blue lagoon, Grindavik, Reykjanes, Iceland, Europe

1113-18002 - Hot water pipes above a street at Krafla Geothermal Area, Krafla, Nordurland Eystra, Iceland, Europe

1113-18007 - Visitors in Krafla Geothermal Area, Krafla, Nordurland Eystra, Iceland, Europe

1113-3396 - Khatt Hot Springs, RAK, United Arab Emirates, UAE

857-18566 - Mammoth Hot Springs area, Minerva Terrace, in Yellowstone National Park.

832-18157 - hot spring called Storhiver at the hiking trail from Landmannalaugar to the mountain Hrafntinnusker, Laugavegur, Landmannalaugar, Iceland

832-18480 - Outlet with colourful thermophilic bacteria and algae of the Sapphire Pool in Bisquit Basin, Yellowstone National Park, Wyoming, Idaho, Montana, America, United States

911-6863 - Bubbling mud pools in the geothermal area of Hverir near Myvatn, Northern Iceland, Polar Regions

911-6890 - Bubbling mud pools in the geothermal area of Hverir near Myvatn, Northern Iceland, Polar Regions

911-6887 - Bubbling mud pools in the geothermal area of Hverir near Myvatn, Northern Iceland, Polar Regions

911-6886 - Bubbling mud pools in the geothermal area of Hverir near Myvatn, Northern Iceland, Polar Regions

829-1175 - Thermal pools at Geysir with Strokkur geyser erupting in the background, Geysir, southwest area, Iceland, Polar Regions

832-15929 - Champagne Pool, hot springs, geothermal area Waiotapu, Rotorua, North Island, New Zealand

832-585 - Geyser Strokkur eruption of fountains, ejected water spouts, sequence of 4 shots, geyser, Iceland, Europe

832-9494 - Detail, Abyss Pool in West Thumb Geyser Basin, Yellowstone National Park, Wyoming, USA

832-9496 - Morning Glory Pool in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-9497 - Morning Glory Pool in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA

832-6908 - Geyser Strokkur, highlands, Iceland, Europe

832-7050 - Break of dawn at the waterside of Yellowstone Lake, Yellowstone National Park, Wyoming, USA, United States of America

832-7695 - Mud pool in the Namafjall geothermal area at Lake Myvatn in Iceland, Europe

832-7052 - Mammoth Hot Springs, Yellowstone Nationalpark, Wyoming, USA, Vereinigte Staaten von Amerika

832-651 - Strokkur Geyser, geyser and thermal region, Iceland, Europe

832-11103 - The geothermal Nesjavellir power station delivers energy via long pipelines and power-cables as far as Reykjavik, Iceland, Europe

832-11118 - Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

832-11111 - Steam from the countless holes and fractures in the earth's crust, the Solfatarten, behind it a geothermal power station and a factory for salt extraction, which is operated with geothermal energy, geothermal region of Gunnuhver, southern Iceland, Iceland

832-11117 - Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

832-11119 - Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

832-11110 - Strokkur Geyser shortly before eruption, geothermal region of Haukadalur, Geysir, Iceland, Europe

832-11113 - Geothermal region of Gunnuhver in southern Iceland with steam from the countless holes and fractures in the earth's crust, Iceland, Europe

832-13452 - Grand Prismatic Spring, Yellowstone National Park, Wyoming, USA, North America

834-2860 - Champagne Pool, Rotorua, Waiotapu Thermal Area, North Island, New Zealand, Pacific

834-2861 - Champagne Pool, Waiotapu Thermal Area, Rotorua, North Island, New Zealand, Pacific

817-16253 - Aquatonic (thermal leisure area) in the Hotel Termes Montbrio, Montbrio del Camp, Tarragona province, Catalonia, Spain

685-1063 - Kilauea thermal area, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Island of Hawaii (Big Island), Hawaii, United States of America, North America

698-2113 - Steam jet at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

698-2112 - Tourists around the hot mud pools at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

698-2111 - Hot pools and boiling mud at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

698-2110 - Leirhnjukur thermal area and eruption site near Krafla geothermal power station, Lake Myvatn, North area, Iceland, Polar Regions

698-2109 - Tourists around the steam jets at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

698-2105 - Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

83-10178 - A carved figure, or poupou, in a Maori village at the Whakarewarewa thermal and cultural area of Rotorua, North Island, New Zealand

83-2595 - Geo thermal power plant in Svartsengi (Black Field) area, Iceland

83-9780 - Carved wooden figure, or poupou, replica village, Maori Arts and Crafts Institute, Whakarewarewa thermal and cultural area, Rotorua, South Auckland, North Island, New Zealand, Pacific

83-9781 - Intricate carving in the replica village at the Maori Arts and Crafts Institute, Whakarewarewa thermal and cultural area, Rotorua, North Island, New Zealand, Pacific

385-1166 - Diamond Geyser, thermal area, Orakei Korako, South Auckland, North Island, New Zealand, Pacific

83-9788 - Carved portal of a church in a Maori village at the Whakarewarewa thermal and cultural area in Rotorua, North Island, New Zealand

197-5016 - Namafjall geothermal area, north east, Iceland, Polar Regions

377-1697 - Geyser in the thermal area at Rotorua, South Auckland, North Island, New Zealand

83-2583 - Geo-thermal power plant in the Svartsengi (Black Field) Area, the Blue lagoon is popular with bathers and good for skin complaints, Svartsengi, Iceland, Polar Regions

306-2669 - Pohutu geyser, Whakarewarewa, Rotorua thermal area, South Auckland, North Island, New Zealand, Pacific

699-213 - Geyser at Geysir thermal area, near Reykjavik, Iceland, Polar Regions

733-44 - Relaxing in volcanic hot water waterfall, Kamuiwakka-no-taki falls, Shiretoko National Park, Hokkaido, Japan, Asia

699-212 - Geyser at Geysir thermal area, near Reykjavik, Iceland, Polar Regions

94-2114 - El Tatio geyser, Atacama, Chile, South America

83-9783 - Bubbling mud pot in the Whakarewarewa thermal area at Rotorua, South Auckland, North Island, New Zealand, Pacific

83-9784 - Erupting geysers and mineral terraces, Whakarewarewa thermal area, Rotorua, South Auckland, North Island, New Zealand, Pacific

306-2667 - The Lady Knox Geyser in the Waiotapu Thermal Area at Rotorua, North Island, New Zealand, Pacific

508-9770 - Thermal activity, Karapiti area, Taupo, South Auckland, North Island, New Zealand, Pacific

698-2146 - Leirhnjukur thermal area and eruption site, near Krafla geothermal power station, Lake Myvatn, North area, Iceland, Polar Regions

83-10170 - Aerial view of Wairakei thermal power area, North Island, New Zealand, Pacific

698-2149 - Tourists around the hot mud pools at Namaskard thermal area, Hverarond, near Lake Myvatn, North area, Iceland, Polar Regions

581-2074 - Steam and bubbling mud pools in thermal area, Rotorua, South Auckland, North Island, New Zealand, Pacific

29-4735 - Steam fumaroles in geothermal field, Sol de Manana, near Laguna Colorado, Southwest Highlands, Bolivia, South America

734-8 - Hot springs and mud pools, Salar de Uyuni, Bolivia, South America

734-9 - Geysers at Sol de Manana, Salar de Uyuni, Bolivia, South America

197-4991 - Hverquellir geothermal area, interior highlands, Iceland, Polar Regions