Antillanca is a ski resort located in the Puyehue National Park, Los Lagos Region, Chile. It offers 32 km of slopes and 10 km of ski routes, with a small but great selection of backcountry skiing opportunities. The resort is situated near the Casablanca Volcano and is known for its excellent powder and well-groomed slopes. While some reviewers have criticized the outdated lifts and high prices, others praise the resort's scenic views and great skiing experience.