Chac Mool System
The Chac Mool cave system is 9 km long, and the main entrance of this system is from cenote Chac Mool.
On the north cavern entrance, you´ll find at the end of it the cave line taking you all the way into a monster room.
A huge massive stalactite around 50 feet / 15 meters high--the world´s biggest in a flooded cave--can be observed! It is a giant cave where your shadow leaves a print in the halocline since your light is just entirely absorbed by the darkness of the place.
In the south section leading upstream, the cave is very different with white limestone rock. It is a smaller size, but again you can view the halocline effect along with some beautiful speleothems.