Tulum is the site of a Pre-Olmec Mayan walled city, serving as a major port for Cobá. The archaeological site is relatively compact and is one of the best-preserved coastal sites. Its proximity to the modern tourism developments along the coastline has made it a popular destination for tourists. Daily tour buses bring a constant stream of visitors to the site. It is popular for the picturesque view of the Caribbean and the fact that it is just 120km south of Cancún. This tourist destination is now divided into three main areas: the archaeological site, the pueblo or town, and the hotel zone, a strip of beach lined with small cabanas. Tulum appears to have been an important site for the worship of the Descending God. Local Maya continued to visit the temples to burn incense and pray until the late 20th century, when tourists visiting the site became too numerous.