Cozumel is one of the ten municipalities (municipios) of the Mexican state of Quintana Roo. The island is about 48 km (30 mi) long and 16 km (9.9 mi) wide, and is Mexico\&#039;s largest Caribbean island.&lt;br&gt;&lt;br&gt;Cozumel Is A Tourist Destination For Its Balnearios, Scuba Diving, Snorkeling, Beach Clubs, restaurants and shopping options.