Visited here from the US twice and had a great time on the boulders. Staff was inviting and…read morefriendly. Fun route setting, comfortable homy gym. Great vibes. The gym is *big*. Tons of bouldering, a couple dozen auto-belay routes, and and a bunch of lead as well.

The Kletterzentrum Gaswerk makes an interesting warren of spaces --- some large halls for toproping…read moreor lead climbing, some small caves for bouldering, and a giant external wall. It's great to be climbing outdoors at a gym. Prices aren't great, but about what I'd expect for Zürich. Fun, but definitely an investment.

Visiting Europe from United States. I climb/boulder 2-5 times a week so I was confident in this…read moregym. Lots of routes to climb, which was great. Loved the bouldering cave upstairs!!! And liked the old factory equipment too. See me in the cave: http://www.youtube.com/watch?v=etXXTZ92IOs

Not suitable for inexperienced ropes course participants. Their zip lines are extremely hazardous…read moredue to the pulley/brake system riders must keep a hand on while riding the line. Our 13 year old son got his finger caught in the brake, which stopped him completely on the line, his full body weight crushing his finger in the pulley. His finger was broken and sliced wide open, resulting in a visit to the emergency room and the hand specialist for surgery. There are plenty of safer, better zipline rigs out there. This company should update its equipment.