832-394756 - Turquoise clear water of a hot spring, Sapphire Pool, Black Sand Basin and Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America
832-394757 - Turquoise clear water of a hot spring, Sapphire Pool, Black Sand Basin and Biscuit Basin, Yellowstone National Park, Wyoming, USA, North America
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