i was a climber for 8 years... i'd say that, in general, women in the gym i was going to several times a week definitely don't want to be hit on at the gym. why? because they go a lot and if you get into some awkward situation there, you don't want to keep running into the same person over and over again...

that said, it does make for a good first date and i definitely got a bunch of random people into climbing that way... =)