What is the name of this natural sinkhole created where a cave ceiling has collapsed?
Correct answer: Cenote

Thomas GMitch
just learned something that I'll never forget.. thanks game

Gewane
Went for a swim in one in Mexico, it was a fabulous experience.

DkRatz72
Gewane, we swam at Dos ohos, was awesome!

ollie
Gewane, so did I. Didn't care for the steep steps down, but the water was amazing.

GraceSpace
Sacred and some were used for sacrifice by the Aztec. There is one at Chitzinza (forgive atrocious spelling) that had me so sad, had to leave .....

mj
quicksilver, how can you tell the water is clear? isn't it dark down there?

Barb@71
Ahmin Walker , Not for me

Ahmin Walker
Another duplicate question

quicksilver
Gewane, I agree, having been in two, both with incredibly clear water