This is not really a trip that you want to try on your own from the advice I have been given many times and from the advice on this board. This excursion involves a ferry to the mainland, then transportation to Xcaret, and then getting back to the dock from Xcaret and getting a ferry back to Cozumel and the ship. We went on the Tulum ruins tour and travelled with the Xcaret tour except for going to and from Xcaret. I would have never tried to do that one on my own.