We left the boat at the Puerta Maya dock to explore Cozumel on our own. As soon as we left the dock area, we got swarmed by people trying to sell us something - be it a taxi ride, an island tour or some cheap jewelry. We were rarely able to pass a single shop without being solicited. So Cozumel seems to be one big tourist trap. On the other hand we enjoyed the little island museum and our walk along the beach from the downtown area back to the cruise dock.