Mel Pap
Google
Wonderful cenote. Probably one of the most beautiful ones I have seen (and that is a lot). Pretty accessible, no 4x4 necessary.
You access via the pueblo of Cacao, and when you get to the entrance, you have to pay entry fee for the two cenotes, Xbatun and Dzonbacal . You can only access either cenote by paying there. They give you a card that you will give to the guard sitting at the gate about 900m further down the road.
Fee: 75 mxn for nationals wirh valid ID & 150 mxn for foreigners. Considering that you get to see two beautiful and clean cenotes that are well taken care of, this is a pretty fair price.
Xbatun was my favourite, it literally looks like it is out of a movie set.
Accessible for everyone, I would say, as the stone stairs are in perfect condition and not steep at all.