Lenk's local mountain is Betelberg, a small, family-focused area reached by two gondola stages, first to Stoss and then Leiterli. It has 42 kilometres of piste across 17 runs and 918 metres of vertical, between 1,083 and 2,001 metres. The grading is easy to read: 52% beginner, 46% intermediate and 2% advanced, with no expert pistes. Days here are spent on wide, open slopes rather than technical descents, which makes it a sensible choice for parents, newer skiers and anyone wanting a relaxed outing without the crowds of larger resorts or the pressure of steep terrain.

The Tschuggenpiste is the run to know, a 7-kilometre descent from Leiterli down to Wallegg that gives stronger intermediates a long, sustained cruise. Beginners do well on the gentle slopes between Leiterli and Stoss, where the Kinderwelt Stoss children's area adds conveyor lifts and teaching zones. A cross park and a short black run supply a little variety for teenagers and more adventurous skiers. Advanced skiers and freeriders will find little to test them, so Betelberg works best as a confidence builder or an easy day paired with the wider Adelboden-Lenk region.

The 2025-26 season runs 1 December 2025 through 15 April 2026, delivering a 19-week operational window. Betelberg typically opens from Christmas onwards, with the broader Adelboden-Lenk region commencing operations from late November when early snow permits weekend skiing. Gondola operations extend to 4 April 2027 for the following season, with weekend-only service from late October through mid-December for hiking access.

Average annual snowfall measures 4.3 metres, with February historically delivering peak coverage of 94 centimetres at 2,001-metre summit elevation and 15 centimetres at base. The Wildstrubel massif to the south blocks Mediterranean weather systems whilst channelling northern snow-bearing fronts into the valley, supporting natural accumulation. January averages three sunny days per month. The resort ranks within the Bernese Oberland's top ten for snow reliability despite the modest base elevation of 1,083 metres.

February and early March provide optimal powder windows and consistent cover, whilst April transitions to spring corn snow conditions. Mid-January through mid-February sees peak visitor numbers coinciding with school holidays. Early December and late March offer quieter slopes with reduced lift ticket pricing under the dynamic model. Night skiing programmes do not operate at Betelberg, though the neighbouring Chuenisbärgli sector hosts Friday evening sessions in February.

The annual Audi FIS Ski World Cup stages giant slalom and slalom races in Adelboden during mid-January, drawing international attention to the region. Saturday's KidsFree promotion runs throughout the season. The Joana Hählen Skimovie course honours the Swiss World Cup racer. Evening fondue events and regional culinary programming feature at on-mountain restaurants during peak season.