Quintana Roo is the home of the city of Cancún, the islands of Cozumel and Isla Mujeres, and the towns of Bacalar, Playa del Carmen and Akumal, as well as the ancient Maya ruins of Chacchoben, Cobá, Kohunlich, Muyil, Tulum, Xel-Há, and Xcaret. The Sian Ka'an biosphere reserve is also located in the state. The statewide population is expanding at a rapid rate due to the construction of hotels and the demand for workers. Many migrants come from Yucatán, Campeche, Tabasco, and Veracruz. The state is frequently hit by severe hurricanes due to its exposed location, the most recent and severe being Hurricane Dean in 2007, which made landfall with sustained winds of , with gusts up to .