Boiling mud pool, Namafjall geothermal area, near Lake Myvatn, northeast area, Iceland, Polar Regions

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

Boiling water at a steaming fumarole field by Lake Linow, a volcanic attraction south of Tomohon city, Lake Linow, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia

Boiling Lake Hike, Dominica, Windward Islands, West Indies, Caribbean, Central America

Boiling Lake Hike, Dominica, Windward Islands, West Indies, Caribbean, Central America

Steam plume off boiling acid lake, Naka-dake active crater, Aso volcano, Kyushu, Japan, Asia

'Cold Boiling Lake' in Lassen Volcanic National Park, Northern California, Usaan area of volcanic activities and features around Lassen Peak volcano