Our excursion was "Mayan Ruins and Playa Sol". Although we did enjoy it, I don't know that I would recommend this one. We spent a LONG time at the ruins in 90 degree heat, then boarded the bus which took us to Playa Sol. The beach itself was nice but small. (They have the area to be used by guests roped off and boaters/jet skis are just beyond the ropes) Also, almost all the beach chairs had already been taken by the time we arrived around 3:30 and a Carnival excursion was there too. We had less than an hour there, so if you go, try to get there early in the day to beat the crowds. Our tablemates visited another beach on their own and really enjoyed it, so if you can figure out the Cozumel taxi system, you can probably do this on your own.