Grimentz-Zinal joins two Val d'Anniviers villages into 40 runs and 115 kilometres of piste, dropping 1,330 metres from 2,900 metres down to 1,570 metres. Intermediates account for 51%, with 26% advanced and 23% beginner, and no expert grading. Most of the skiing sits above the treeline on wide, rocky slopes. The two sectors were linked in 2014 by a 3-kilometre cable car, and gondolas, chairs and nine T-bars now connect the bowls beneath the Weisshorn and Zinalrothorn. Northeast-facing slopes help hold snow from early December.

The Lona black run is the main on-piste test at Grimentz, and the 7-kilometre Chamois descent links Zinal back to Grimentz village. Freeriders head for the Gardes de Bordon zone above Zinal, around 100 hectares that includes an avalanche training centre, and for routes towards Vallon d'Orzival and St Jean. Beginner slopes cluster around Bendolla and Sorebois. Confident intermediates and advanced skiers get the most from it, while those wanting only gentle slopes will find the beginner share limited. Free ski buses connect the neighbouring valleys.

The 2025/26 season runs 7 December 2025 through 21 April 2026, with weekend operations potentially starting mid-November in favourable snow conditions. Bendolla and Sorebois sectors typically open weekends from 15 November, transitioning to daily operations by early December. The season extends 19-20 weeks depending on snowpack, closing in mid-to-late April as spring temperatures rise. Altitude between 1,570 and 2,900 metres provides a 5-month operating window, longer than many mid-sized Swiss resorts.

Annual snowfall averages 430 centimetres across the ski area, with the resort recording 150-200 centimetres base depth each winter according to 10-year records. February delivers the heaviest precipitation with 30-plus centimetre storms occurring 3-4 times monthly from December through April. Northeast-facing terrain holds snow quality through spring, whilst 250 snowmaking units cover lower runs to Grimentz and Zinal villages. Base depths fluctuate from 20 centimetres early season to 60-165 centimetres by mid-winter, with summit zones retaining coverage into late April.

Optimal timing spans mid-January through mid-March when base depths exceed 100 centimetres and powder remains untracked for days after storms. February offers peak conditions but attracts school holiday crowds, whilst March balances snow quality with longer daylight and warmer temperatures. December and early January suit early-season enthusiasts, though coverage remains variable below 2,000 metres. April delivers spring corn snow on sunny slopes, with softer afternoon conditions. Quieter periods include early December, January outside holidays, and post-Easter April.

No major events disrupt normal operations, though the Sierre-Zinal mountain race passes through the valley each August. Night skiing does not operate at Grimentz/Zinal. The resort maintains a low-key calendar focused on daily operations rather than special programming. Avalanche training sessions run regularly at the Gardes de Bordon centre throughout winter for groups and ski schools.