Welcome to the Cozumel Cruise Port Guide. Cozumel is the largest Mexican island in the Caribbean Sea. The main town on the island is called San Miguel. The island lies 19 km / 12 miles in front of Playa del Carmen on the mainland. Cozumel is a perfect destination for those looking for beaches, shopping, scuba diving and snorkelling. But for those interested in history instead of beaches you are at the right spot as well! The island has a number of Mayan ruines like San Gervasi and you could even visit the famous Chichen Itza when your ship is in port in Cozumel.