We had a voucher from Spreets, 2 kids in tow for a day out with their Dad. The rude and extremely unhelpful person at the counter acknowledged we had a voucher and that we had paid for it but hadn't seen one before and therefore without further investigation decided we would have to pay again.
Not wanting to argue in...
Extremely fun morning or afternoon day out! This place can get busy on week-nights, but should be ok on weekends. Friendly staff will set you up for a fun climbing session. It is worth hiring shoes too, as climbing in sneakers is no fun.
It gets hot in summer, so go early or late
We took our little ones here and they climbed all day long! By the end of the day they weren't even worried about the heights. Staff were friendly and helpful through out the whole day with my three rat bags.