Llanos de Challe National Park, Nature reserve in Huasco Province, Chile

Llanos de Challe National Park covers 45,708 hectares of coastal desert in the Atacama Region, created by Decree No. 946 of 29 July 1994. Its mountains, moistened by the Camanchaca fog, form a lomas ecosystem; the highest point is Cerro Negro at 950 m. The park includes Playa Blanca, a white-sand beach, and the Llanos de Challe depression where the flora and fauna can be observed.

The park was created by Decree No. 946 of 29 July 1994, published on 8 November 1994, which also fixed its boundaries. The same decree declared the subsoil a scientific site of interest for mining, so extraction there requires written permission from the President and the Minister of Mining. In 2021 an illegal mining camp of twelve people at Quebrada Minillas, a historic mining site, was detected and dismantled.

The name Challe comes from the llano, the flat depression inside the park where the desert flora and fauna are best observed. The white-sand beach of Playa Blanca, at kilometre 37 of the coastal route from Huasco Bajo, lies within the protected area. Quebrada Minillas, on the park's edge, is a site of historic mining.

The area is open during daylight hours with walking trails through the landscape, so bring comfortable shoes and plenty of water. Since the region is very dry, sun protection is essential, especially on the exposed beaches.

The park is home to a significant population of guanacos, wild relatives of llamas that are uncommon in this region. A rare flower called Garra de León also grows here, adding to the area's biological diversity.