Ischigualasto Provincial Natural Park is located in the northeast of the province of San Juan, 205 miles from its capital city and about 50 miles from San Agustín del Valle Fertil. This little town is the departure point for all tours going to the small portion of the park that is accessible to tourists. Popularly known as the Moon Valley, this fascinating and strange place covers about 153 000 acres and, together with its neighbor, Talampaya in the province of La Rioja, it was declared Mankind’s Heritage. Its importance resides in the scientific value of the paleontological findings made in the area: an almost complete sequence of the Triassic Period of the Mesozoic Era. To visit Ischigualasto means walking on the lands that dinosaurs inhabited 180-million years ago. The moon-like soil and strange geoforms sculpted by the water, sun and wind on the rocks over million of years, has turned this place into an otherworldly  site. Return by Nacional Route 150, taking a new route to Cuesta del Huaco. Return to San Juan in the afternoon.