Cerro Castillo National Reserve Adventures

Cerro Castillo National Reserve encompasses over 150,000 acres of dramatic Patagonian wilderness located in the Aysén Region of southern Chile. This protected area features the jagged peaks of Cerro Castillo (Castle Hill), a striking mountain shaped like castle battlements, which is the crown jewel of the reserve. The landscape is characterized by alpine forests, glacial lakes, steep valleys, and fast-flowing rivers, supporting diverse flora such as lenga and coihue trees, as well as a range of fauna including the elusive Andean huemul deer, foxes, and an abundance of bird species. Established in 1970, the reserve serves both conservation and recreation purposes, preserving fragile ecosystems while providing visitors with challenging outdoor adventures. Hiking is the highlight activity, with the Cerro Castillo trek drawing trekkers from all over the world to navigate its rugged trails, mountain passes, and dramatic vistas. Other popular pursuits include camping, fishing in sapphire lakes, horseback riding, and photography. The reserve’s remoteness and relatively low visitor density offer an immersive wilderness experience. Weather can be unpredictable, so visitors are advised to come well prepared. The reserve’s accessibility from the nearby town of Coyhaique makes it a key destination within the Northern Patagonia Ice Field region, perfectly suited for those seeking spectacular mountain scenery, solitude, and authentic South American wilderness.