This will be our second trip to the area and the last time we never left the resort. I'm sure we will take the shuttle one day to Puerto Morelos and wander around. But If we were going to spend one day just out to see the culture/sites, where should we go? I don't really want to be on a tour bus all day with tons of tourists. Can you get a private tour guide and driver? Should we visit ruins, water parks, go into a specific town, go to some cenotes? Anyone have suggestions?