In reply to ashaw:
Hi, there is an indoor wall in Briançon, it's in the school I think but its not a public one, the public can use it but on set times and I think the CAF manage it, the is also one in Pelvoux (my local one) but that is CAF and not really good for groups.
Also CAF walls and I think all walls in France are going through a bit of upheaval at the moment the FFME is changing its insurance so I believe the walls are making every one do a mini award to get to keep using them.
There is swimming pool, sauna and spa thing at Monetiser les Bains and a normal pool in Briançon, there is a bowling place. If you want something more outdoors you could do an evening snowshoe? or if you have a budget you could do some avalanche training games?
I live just near by and happy to help if you have any questions
cheers Rob