Very Amazing Giant Water Hole - At first glance we might be wrong in seeing the whirlpool toward another dimension. What can only be described as a giant hole in the water is actually a method to control the release of water flow from the dam or embankment to the downstream area. Spillways This helps prevent flooding of aging or destruction of the dam slowly.

The fact this happened, This hole can indeed drain the water because the dams are located in the highlands.