We did a mandatory stop at Cancun, a tourist central, a place filled with concrete hotels, bellboys and taxis. Every sleeping accommodation seemed to be out of our price range so in the evening we drove to Playa del Carmen where our out-of-date Lonely Planet guide informed us there was a camp. We discovered there was none and under a heavy tropical rain we drove to a gas station where they let us park in the back and sleep for the night.