This sinkhole is located near Chichen Itza (a separate post on that coming up), a large archaeological site built by the Mayans. It is not the main sinkhole at Chichen Itza where sacrifices were made, but we were told it is one of the prettiest. There was a large sprialing staircase to take us down to the level of the water.
This is the view across the top of the sinkhole from the staircase entrance. You can see the gift shop on the other side.
And we are at the water level!
Looking up just a bit.
And looking up at the opening from the water level.
Another shot of swimming tourists.
And a close up of the vines.