Cancún is situated in the state of Quintana Roo on the eastern coast of Mexico’s Yucatán Peninsula, a seal-head shaped land mass that stares longingly towards Cuba from Guatemala and Belize. Cancún is on the northeastern tip of the Peninsula, fronted by Bahía de Mujeres (Bay of Women), the Caribbean Sea and two lagoons.Cancún is actually two places in one. On the mainland lies Ciudad Cancún, a planned city founded as the service centre of the resort. The main north-south thoroughfare is Avenida Tulum, a long tree-shaded boulevard lined with banks, shopping centres and restaurants. The smaller, low to medium-priced hotels and restaurants are within the city centre.