Lauca National Park, National park in Parinacota Province, Chile

Lauca National Park is a nature reserve in the Andes between 3,200 and 6,342 meters (10,500 and 20,800 feet) elevation with volcanoes, lakes, and lagoons spread across 137,883 hectares (340,400 acres). The landscape shows dark volcanic terrain, high-altitude grasslands, and clear mountain waters shaped by geological forces.

The area was first established as a forest reserve in 1965 and became a national park in 1970. International recognition followed when it was designated a UNESCO Biosphere Reserve in 1981.

The park's name comes from Aymara jjyghgu'a, meaning 'aquatic grass'. The village of Parinacota, inside the park, preserves a 17th-century indigenous-colonial architectural complex, including its church. Chucuyo keeps adobe houses with straw roofs, and the Las Cuevas hot springs rise from bofedales at 31 °C.

The park can be reached via the international highway CH-11 from Arica, with the town of Putre serving as the nearest supply point about 14 kilometers away. The thin mountain air and changing weather require proper acclimatization and suitable gear for high-altitude conditions.

Lake Chungará sits at the base of the Payachata volcanoes and counts among the world's highest lakes. The water body supports over 130 bird species, including rare flamingos and Andean geese that gather on its shores.