Obersaxen Mundaun spreads 120 kilometres of piste across the Surselva, with 1,109 metres of vertical between the 2,310-metre top and the 1,201-metre base. Half the terrain is beginner, 33% intermediate and 17% advanced, with nothing graded expert. Three six-seat chairs, four quads, two triples and three T-bars carry skiers up, and extensive snowmaking backs up natural cover on the lower slopes. Queues are rare even in school holidays, and the sunny, wide-open layout rewards skiers who like to cover ground without fighting for lift space or crowds.

The Four Peaks circuit links Piz Mundaun, Hitzeggen, Stein and Piz Sezner, giving broad, open pistes with long views across the Alps. The longest run, from Piz Sezner to Vella, covers about 15 kilometres, while the Carlo Janka run is the steepest but short at roughly 1 kilometre. Valley runs drop to villages including Lumbrein, Vignogn, Luven and Flond, which then need a ski bus back. There is some off-piste beside the Wali-Piz Sezner chairlift for confident skiers. Families and relaxed cruisers suit it best, with a few challenges for advanced skiers.

The 2025-26 season opens on 20 December 2025 and closes on 6 April 2026, providing a 108-day operating window. Typical season length runs mid-December through early April depending on snowfall. The base at 1,201 metres and summit at 2,310 metres offer reliable snow conditions throughout winter. Average season totals reach 430 centimetres, with most terrain above 1,500 metres benefiting from northern exposure.

The second week of January typically delivers the snowiest conditions, averaging 3.4 snowy days with 32 centimetres of accumulation. February offers the deepest base, with 91 centimetres at summit and 49 centimetres at base elevation. Average snow depths during peak season reach 76 centimetres at the summit and 39 centimetres at base. The resort reports 51 sunny days per season on average, with March recording the most sunshine at 14 days.

January through March provides optimal timing for powder and consistent coverage. The north-facing aspect preserves snow quality into April, when spring conditions and longer days attract touring skiers. December opening depends on early-season snowfall and snowmaking on the 29 kilometres of equipped piste. Quieter periods occur in early December and late March when neighbouring resorts face similar conditions.

Cross-country skiing operates on 18 kilometres of trails in Obersaxen, Lumnezia and Mundaun at approximately 1,300 metres elevation. The 1.6-kilometre Foppa trail at Flond runs illuminated until 21:00 for evening sessions. Six toboggan runs totalling 15 kilometres operate when snow permits. The Cuolm Sura to Surcuolm sledge run remains the most reliable for transport via the Valata chairlift.