The toxic lake at the bottom of the ocean. #BluePlanet2 | BBC Earth

Brine pools are underwater lakes found on the seafloor! The pools are filled with extremely salty water, known as brine, that is dense enough that it sinks below the regular seawater. The salinity in these pools is so high that most ocean creatures can't survive in it. If a fish or crab accidentally enters a pool it will quickly die. The salty water then acts similar to a pickling brine, halting decay and preserving bodies for years! | OceanX

Mysterious Underwater River Found on Ocean Floor | Brine Pools A brine pool, also known as a brine lake or underwater brine pool, is a concentrated area of highly saline water that exists on the ocean floor. These pools are typically found in deep ocean basins and are characterized by their high salinity, which can be several times greater than that of the surrounding seawater. Brine pools are formed when certain geological and chemical conditions are met. One famous example of a brine pool is t