Xcaret has many reserves that are open to the public. According to the research by the National Institute of Anthropology and History (INAH), the first buildings of the site can be dated to 200 to 600 A.D., but the majority of them are from the period from 1200 to 1550 A.D. The constructions of the Late Post-Classical period are situated along the coast; some of them in strategic positions for surveillance. The site had a wall, but unlike the one in
Tulum that was open towards the ocean, the wall at Xcaret defended the site from assaults coming from the sea. The wall may also have served to divide the solid ground of the interior from the swampy ground closer to the coast. Xcaret was inhabited at the time of the first stage of the Spanish incursion of
Alonso Dávila and
Francisco de Montejo into the eastern coast of the
Yucatán Peninsula (1527 to 1529). In 1548,
Juan Núñez was put in charge of Xcaret. At this time, a Spanish chapel was built. This implies that Xcaret remained an important settlement. The thatched roof of the chapel has disintegrated, but the walls remain standing. The INAH divides the architectural formations into several different groups. == Historical significance ==