But what else is so special in this region of the world?
In the Yucatan Peninsula there are not rivers, not as we normally know, all the rivers are underground. The peninsula is a great sponge where rivers flow under the earth, rivers of water as clear as anywhere else you've seen. This subterranean world was seen by the ancient Mayans as the underworld Xibalba, and cenotes were the windows to this world.
If you travel in the Yucatan Peninsula and do not visit a cenote, your trip will be incomplete, you should enjoy at least one of these wonderful places where the combination of water and light are one of the most beautiful views you've ever seen.