This is the "main" ski area above Corvara which links in to Passo Campolongo, San Cassiano and La Villa.
Since this large area of intermediate-level skiing can be accessed in so many places, this description starts at the southern end from where the Corvara - Arabba skiing page finishes.
Having taken the Boè gondola out of Corvara and the red run down to Passo Campolongo, the Cherz chairlifts on the other side of the road provide access to the blue and red runs back down to the road, or via a blue run to the Masarei chairlift. This rises to the Pralongia area, with a restaurant and scenic views of the Dolomites in all directions.
There are plenty of options here, but one of the nicest is the easy blue run all the way from Pralongia at 2140m to the base of the gondola at 1537m in San Cassiano (St Kassian in German). From the top here there are a variety of lifts.
Skiing down the side of the La Fraina chairlift in the dip to the right will lead to the bottom of the Bamby chairlift and the ride up to Piz La Villa (and the start of the long black and red runs down to the village of La Villa). An alternative is to carry on down the valley to the base of the short La Rüa chairlift which provides access either to the Piz La Ila gondola back up the mountain, or down the Badia valley (covered in the Alta Badia skiing page).
Rising in the gondola, there is a clear view of the World Cup run for those wishing to test their limbs and bravery on the steep and sometimes icy black run.
Heading from Piz La Villa back to Corvara is not necessarily an obvious route. A relatively straightforward method is to take the short run down to the bottom of the Roby chairlift. From the top of this lift it's a short hop to the Braia Fraida chairlift which is another of the two-way chairlifts in the area. In this direction skiers depart the chairlift in the mid-station and can take a long blue which winds its way around the hillside to eventually join and cross the road down to Corvara from Passo Campolongo.