You'll love, very fast with lots of elevation changes was there a few years ago, there's even a pool in the pit near the very good restaurant- only downside was that they wouldn't open all the garages and was extremely tight for space. Also if they're staying at the same hotel (opposite the little cop shop) in prai de Roche I can highly recommend the restaurant at the top of town it's called "all beef" and only a 5 minute walk.