When you take revenge on somebody, you are actually paying them the highest compliment possible. It’s like saying, “You’ve affected my life to such an extent that I must reciprocate. I must affect your life as deeply as you have mine.” Revenge may be the ultimate Hallmark card. Yeah. When you think of it like that, the cliché is true. Revenge is sweet.

Augustus Hill, Oz

Deep in the Mexican jungle, lies an underwater cave called the Angelita Cenote.
The pool is 200 feet deep and even contains a separate river that runs
along the bottom on the underwater cave. This is due to the different
levels of salinity in the water, causing denser water to sink to the
bottom.