We did the ice climbing course at the end of 2018 and can't say enough good things about it. The guides were friendly and took there time. I higly recommend them.
It was me and my dads first zipline experience and it was GREAT!! Why only 4 stars: there was only 1 line, on which you could do 2 runs. For €23 p.p. that was a bit too little. But other than that I'd like to do it more often now 😬