These submerged systems of water come from saltwater blending with hydrogen sulfate. This hydrogen sulfate combination is weightier than its encircling seawater and therefore, has a tendency to go down to the bottom. At this point, there is an extraordinary variance between the 2 types of seawater. In reality, the heavier water at the bottom seems to circulate as though it really is a river or lake. Visiting an Underwater River or Lake will give you goosebumps as it seems like a river inside the ocean.
These events are often located in the cenotes of the Mexican Yucatan peninsula, but experts are now locating deep sea lakes which have and host their very own indigenous species.