The archaeological site is relatively compact (compared with many other Maya sites in the vicinity), and is one of the best-preserved coastal Maya sites. Its proximity to the modern tourism developments along the Mexican Caribbean coastline (the "Riviera Maya" surrounding Cancún) has made it a popular destination for tourists. Daily tour buses bring a constant stream of visitors to the site. The Tulum ruins are the third most-visited archaeological site in Mexico, after Teotihuacan and Chichen Itza. It is popular for the picturesque view of the Caribbean and a location just 128 km (80 miles) south of the popular beach resort of Cancún. A large number of cenotes are located in the Tulum area such as Maya Blue, Naharon, Temple of Doom, Tortuga, Vacaha, Grand Cenote, Abejas, Nohoch Kiin and Carwash cenotes and cave systems. The tourist destination is now divided into four main areas: the archaeological site, the pueblo (or town), the zona hotelera (or hotel zone) and the biosphere reserve of Sian Ka'an.