What's inside a lake under the sea?

Scientists have discovered a 'lake' in the Gulf of Mexico. ... The water in the 'lake within the sea' is about five times as salty as the water surrounding it. It also ... read more

I don’t think there are any real lakes under the sea. However, there are a few places where there is a depression in the sea bed filled with salty water, more salty and more dense than the ordinary seawater above. read more

The water in the 'lake within the sea' is about five times as salty as the water surrounding it. It also contains highly toxic concentrations of methane and hydrogen sulphide and can thus not mix with the surrounding sea. For animals (and people) who swim into it, these toxic concentrations can be deadly. read more