Thinking of doing private care for 4 hours. Have variety of ages in group from 8 mo. to 75 yrs. old. Any suggestions what we could do for the 4 hours? Not really interested in the Mayan Ruins. A short beach trip would be nice since the water looks so beautiful. Nice shopping area, like to hear a little of the history or local stuff and place to have drinks and light lunch/snack would be good as well.