You pretty much have to be travelling independently in a rented car to be able to stop at this park. It is right on the highway just south of Cancun.
There are numerous turtles, lizards, crocodiles, monkeys, etc to walk around and see. The guides are really good and speak English.
The entrance fee was quite small, but the guides aren't employed by the park so they live on your tips. A group of 4 of us gave him around $30 for a 2hr tour and he seemed really happy with that.
We got to hold baby crocodiles, and our guide was very amused by us chickening out at one point. He handed us large and larger crocs (starting at about 5 inches long)....when he started getting out the ones that were over a foot we hastily declined.
The other somewhat scary moment was when we went through a small gate and realized belatedly that he had just taken us into the adult crocodile area. Even though its hot and they are torpid and well-fed it takes a little never to stand within a foot or two of these guys.
It is never crowded since it isn't flashy enough to be on any bus tour itineraries.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.