Cave with hot water, Grjótagjá, Mývatn, Iceland
Tag «pool»
Green Heart of Subway, Zion National Park, Utah, USA
Hot spring at Chae Son (Jae Sawn) National Park, Lampang, Thailand
Grand Prismatic Spring in Yellowstone National Park, Midway Geyser Basin, Wyoming, USA
Salt flats and Panamint Mountains, Death Valley, California, USA
