Mastrils is a ski resort located in Heidiland, Switzerland, in the eastern part of the country. It offers 3 km of slopes for skiing and snowboarding, with a single lift. The resort is situated near the village of Landquart and reaches an elevation of almost 1000 meters above sea level. Mastrils is suitable for skiers of all levels, with a mix of beginner, intermediate, and advanced runs. It's one of the cheapest ski resorts in Switzerland, with a day pass costing CHF18.