Here is a special ski run I think your gang would enjoy, the Lagazuoi Valley, or sometimes referred to in English as the Hidden Valley. It will take an hour or 2 to get to from Canazei or Selva, but they did go to ski, n'est pas?
They should head to Armenterola on the far east end of the Sella Ronda circuit. There is a small hotel there, and in the parking lot next to the road, there will be a bunch of taxis and some buses. For a flat fee, (was 5 EUR per person 10 years ago) they will haul you up to the top of the Falzarego Pass on the way to Cortina d'Ampezzo. There, there is a cable car that takes you up onto the mountain. Note the informational signs that this was the front line during WWI and the Italians and Austrians kept trying to dig tunnels under each others positions and blow each other up. Not much came of it except to make a lot of of road building material for after the war.
Anyway, ski over the other side and there is a groomed ski trail through an isolated valley that is exceptionally beautiful, with frozen waterfalls all about. Further down the trail, there are a couple of restaurants to stop for refreshment. At the end of the run, it becomes too flat to ski. There are a couple of horse-drawn sleighs to haul skiers over the flat section. Three ropes are dragged behind the sleigh with a knot about every 3 feet. You grab on to a section of rope, pay the attendant about 2 EUR and when 40 or 50 people are holding the rope, the drivers shouts "giddeyup!" (or the German or Italian equivalent), and the skiers all get towed to Armenterola.
The first time I did this about 20 years ago, dodging the horse apples in the ski run was part of the challenge. Nowadays, the horses wear diapers, so that is no longer an issue. At Armenterola, there is a small poma lift behind the hotel to boost you up high enough to get on a run taking you back to the main lifts.