One of the active things you can do in Carinthia, Austria is karting downhill.
At the Weissensee there is a chairlift and at the top there are such karts for rent:
No, I didn't dare to do that myself. You can steer and brake with such a thing on your own.
Does that cost?
Rent costs €12,50 incl. helmet that you borrow and return in the valley with the cart.
An agreement must also be completed and signed. It says you do the carting at your own peril.
Also cool for daring:Paragliding! That's possible on the Gerlitzen:
Own footage and non-sponsored post.