Cancún (pronounced as IPA: [kanˈkun]) is a coastal city in Mexico's easternmost state, Quintana Roo, on the Yucatán Peninsula best known as the Mexican Caribbean. It is the municipal seat of Benito Juárez municipality and a world-renowned tourist resort. The city center is located on the mainland which connects over the Nichupté and Bojórquez lagoons to a narrow "7" shaped island where the modern beachfront hotels are located. The island of Isla Mujeres is a nearby island located off the coast and is accessible by boat from Puerto Juarez or Punta Sam. The older section of the city, known as "El Centro" follows the original master plan, consists of neighborhoods called "supermanzanas" (superblocks) that are formed by the intersections of the boulevards and traffic circles (roundabouts). This area is characterized by winding streets with cul-de-sacs that tend to keep out the main flow of traffic, including market places such Xel Ha, and usually have one or more parks, green spaces, walkways and various monuments. Ave. Tulum is the main north-south artery (connecting downtown to airport some 30km to south). Tulum is bisected by Ave. Coba (pronounced Koh bah). East of Ave. Tulum, Coba becomes Ave. Kukulcan which serves as the primary road through the "7" shaped hotel zone. Ave. Tulum is terminated on the north side by Ave. Paseo Jose lopez Portillo which connects to the main highway to Chichen Itza and Merida. Another major north-south road is Ave. Bonampak which runs roughly parallel to Ave. Tulum. The ferry to Isla Mujeres is located on Bonampak. The original master plan was repeatedly modified and, on the mainland, often ignored. To save on the cost of installing sewage systems and other public services, the design of much of the rest of the city reverted to the grid plan after Hurricane Gilbert (1988). The newest upper-middle-class residential areas reflect the original plan, but are much less intimate. Less expensive developments are comprised almost entirely of identical one- or two-story small row houses, sometimes built around interior plazas. Almost all buildings on the mainland are under four stories high.