In reply to wkrzys:
I recently moved back to the UK from Geneva, partly due to my inability to integrate with the local climbing scene! Strongly recommend getting decent French asap - heinous work commitments, incompetence and laziness prevented me and I somewhat regret it.
The only recommendation I can make for making contacts are to get to the local walls, list below, or there is a email list run by CERN through which you might be able to arrange partners :
http://info-climbing.web.cern.ch/info-climbing/
You will have no trouble finding skiing/snowboarding partners, try the (huge) CERN ski club, or use the various ex-pat forums such as www.glocals.com (although these are really not to everyone's taste).
Climbing wall options in the Geneva area include :
- Panstructure in Vernier -
http://www.panstructure.ch - bouldering only, and you will frequently find yourself topping out into an enormous cloud of ganja smoke...
- Queue d'Arve sports centre (but it's shite - the panels are ancient fibreglass, the routes change once a decade and it's something like 36chf to get in)
- Vitam Parc in St-Julienne en Genevois -
http://www.vitam.fr/en/page/climbing-zone - the best roped-climbing option IMHO
Good luck!