Gaet'ale Pond is a small hypersaline lake located near the Dallol crater in the Danakil Depression (Afar, Ethiopia). It is located over a hot spring of tectonic origin and has no apparent inlet or outlet streams. The water of Gaet'ale Pond has a salinity of 43%, making it the saltiest water body on Earth.
Gaet'ale Pond is the largest of a series of small ponds located approximately 4 kilometres southeast of Dallol springs. It is crescent-shaped with a diameter of about 60 metres.
According to residents of the nearby village of Ahmed'ela, an earthquake in January 2005 reactivated a thermal spring and the pond was created. For this reason its temperature of 50–55 °C (122–131 °F) is hotter than the environment.
Bubbles of odourless gas are emitted from the lake surface. It is likely volcanically produced CO2. Bird and insect corpses have been found around the pond, and it has been proposed that the gas may be harmful for small animals or humans.
According to wikipedia