There are many scenic cenotes (natural sinkholes filled with fresh water) around Tulum, of which the Gran (great) cenote is the most famous. I guess this is the reason for the steep entry fee of 150 pesos.
On our off day, between diving days, I rented a bike in Tulum and cycled to Gran cenote. It’s about half an hour’s cycle trip.
Sunscreen and insect repellant creates a layer of oil on the water of the cenote, so you have to shower before entering the clear water.
Gran cenote is a big tourist attraction, so there were many tourists and kiddies everywhere.
The water of the cenote is clear blue. I took a snorkel and mask to the cenote that enabled me to see the fishes in the clear water. There are also beautiful stalactites under water.
I nearly stepped on the above iguana while taking pictures.
A special shallow zone is dedicated to turtles. The turtles sometimes leave this area to swim with tourists in the deeper water.
There are caverns with stalacmites and stalactites surrounding the area where people swim.
One part of the cenote has a roof over. Inside this cavern there are many bats hanging upside down like bunches of grapes tied to the limestone roof.
You can swim from one pool trough the cavern to the other pool.
I followed the rope deeper into the caverns:
There were a few divers in the water. Unbeknownst to me, the next day I would also be diving in the caverns of Gran Cenote! The plan was to do a final dive in the ocean, but when the wind was too strong, we went to dive in the cenote instead. It was an incredible experience to see the stalactites inside the caverns.