The island is located in the Caribbean Sea along the eastern side of the Yucatan Peninsula about 82 km (51 mi) south of Cancún and 19 km (12 mi) from the mainland. The island is about 48 km (30 mi) long and 16 km (9.9 mi) wide. With a total area of 477.961 km2 (184.542 sq mi), it is Mexico's largest Caribbean island, and Mexico's third-largest island, following Tiburón Island and Isla Ángel de la Guarda.
The majority of the island's population lives in the town of San Miguel (pop. 77,236 in 2010), which is on the island's western shore. The municipality, which includes two small areas on the mainland enclaved within theMunicipality of Solidaridad with a land area of 10.423 km2 (4.024 sq mi), has a total land area of 647.33 km2 (249.93 sq mi).
The island is covered with mangrove forest which has many endemic animal species. Cozumel is a flat island based on limestone, resulting in a karst topography. The highest natural point on the island is less than 15 m (49 ft) above sea level. The cenotes are deep water filled sinkholes formed by water percolating through the soft limestone soil during thousands of years. Cozumel's cenotes are restricted to qualified cave divers with appropriate credentials. In the early 1990s, a group of cave explorers here discovered the fifth-largest underwater cave in the world.
Fiesta Americana Cozumel All Inclusive is an idyllic hideaway located between the downtown San Miguel and Chankanaab Nat