We did Tulum with a beach break and lunch. Tulum was great but it was a hot day and we were on the go from 7AM to 4:50PM and the ship left at 5PM! The beach we went to was a few miles from Tulum and had only one bathroom. I did not feel like waiting in line to change into my bathing suit so did not go into the water. DH did and he said it was nice and refreshing.
I am glad I went but next time would do a more relaxing excursion.