Tulum was a city used by the Mayans to communicate with Cozumel.  Through smoke signals, they were telling each other if the weather was good or not to cross from Tulum to Cozumel on the boats.  Now a major tourist destination with reefs and great ocean scenery to go on a boat rental.  With Mayan ruins right on the beach to cruise by on a yacht charter or a Catamaran rental and enjoy an amazing yachting experience or Sailing experience.