We are going to be on the Holiday March 2005. While docked in Calica our group ( 7 adult & 2 children) are planning on renting a large van and driving to Tulum on our own. On our way back we would like to stop in at some local restaurants, stores and maybe find a nice beach with some snorkelling.
Allison, one of the prettiest beaches in the area in my opinion is just below the ruins at Tulum. I have not had the chance to snorkel there but when you go toward the back of the ruins, look down the cliff and you will see what I mean. Hope you enjoy your trip!