Staying at Reef Residencias...we've never been to Cozumel before and we want to know if it's safe/smart to rent our own car from the airport, drive around island, etc. We are staying at Reef Residencias condos. Anything particular we should know about rental cars? Is it possible/impossible to make our way to the condo on our own? Any MUST'S you would recommend? We're not divers, we're in our 30's and love great food, great scenery and don't need wild parties. Getting away from the kids and work for a little peace and quiet. We like to get out and about somewhat while on vacation, hikes to fabulous places? Trek to gorgeous places? Any advice would be appreciated!!