This cenote is located only about 15 minutes from Chichen Itza, so definitely stop by here for a dip and some adventure after wandering around the hot ruins.
They have a huge parking lot, so parking is not a problem! There are also many tour buses that you can book to come to this cenote.
Don't worry about bringing your snorkel gear here, the water isn't as clear as some of the other cenotes. Also, there are showers, bathrooms and lockers here for you to get ready to take the plunge.