Cozumel is an island in the Caribbean Sea off the cost of Mexico and is most admired by tourists for its snorkeling and scuba diving. World famous for its coral reefs Cozumel is a great adventure for those looking to go deep sea fishing, snorkeling, kayaking and much more. Cozumel is the third largest island in Mexico with the bulk of the population living in the town of San Miguel. In 2005, Cozumel had an estimated population of 73,193 residents. FlightNetwork can help you find the lowest price for travel to this destination!