I occasionally go to climbing gyms. While climbing I see a lot single guys milling around. I also occasionally go to whiskey tastings. It's a similar crowd here -- aimless, single guys. I was talking to some single women I'm friends with, and I'm honestly not sure what to tell them would be a better place to meet guys: climbing gyms or whiskey tastings. The guys I know from the climbing gym are likely a bit healthier, but likely more obsessive and a bit crazier. Ultimately it probably doesn't matter. I suspect there's a lot of overlap between the two crowds.