Achibueno - Linares

Located in the mountains of Linares, Achibueno is considered one of the most beautiful landscapes in the Maule Region. It is sometimes called the “Patagonia of central Chile” because its scenery and waterways resemble the country’s far south.

The Achibueno River begins at the lagoon of the same name, on the eastern side of the Nevados de Longaví. From there, crystal-clear water descends through the Achibueno valley, an area visited by thousands of travelers each year.

Along the river are beautiful natural pools whose exceptionally clear water can appear green or turquoise. Rainbow trout and other fish species also make the river attractive for recreational fishing.

Over its approximately 105-kilometer course, the river receives water from several tributaries, including Nacimiento, Potrero Grande, Los Patos, La Gloria, Las Ánimas, Los Hualles, Pejerrey, Vega de Salas and Llepo.

The Achibueno eventually joins other waterways that form the Loncomilla River, which later flows into the Maule River. The Maule then reaches the Pacific Ocean, carrying essential nutrients into the marine ecosystem.

The valley preserves dense vegetation and native wildlife. Vehicle access reaches only part of the area; from there, walking trails lead deeper into forests, ravines and river descents such as Bajo de las Lástimas, known for its impressive waterfalls. These are long hikes, but the landscapes make the effort worthwhile.

The Achibueno River Valley was officially declared a Nature Sanctuary on September 7, 2015, through Supreme Decree No. 35 of Chile’s Ministry of the Environment. The protected area includes the river channel, floodplain, inland water bodies and tributary glaciers, as well as adjacent slopes and privately owned riverbanks.