underwater rivers and lakes
Dive an Underwater River or Lake?
There exists underwater rivers and lakes that flow and ebb like the surface lakes and rivers that we are used to seeing.
These underwater bodies of water, if I may, are caused by saltwater mixing with hydrogen sulfate. This hydrogen sulfate mixture is heaver than its surrounding seawater and therefore tends to sink to the bottom. When this happens there is a distinct difference between the 2 types of seawater.