Went mid afternoon and there were a few groups in but not too busy. It's dark inside, with UV light, lighting up the paint in and around the golf course. It was cheap and you also got the offer of adding 50czk for 2 drinks- ANY drinks, including branded alcohol!
The golf was crazy, not too hard and fun! You could go around as many times as you wanted. There were also other games like uv lit giant Jenna, golf pool, normal pool as well as others.
For us, it was a break from a lot of walking and was fun!