We were invited to try out the revamped Bounce Below at Blaenau Ffestiniog which is half an hour’s drive from Graig Wen. After more than £3/4million investment, Bounce Below is back to give thrill seekers aged seven and up a shot of pure, giggly fun in a spectacular setting deep underground. There’s also a Junior Bounce for children aged 3 – 6 years and non-bouncing spectators can pay a fiver to come into the caves and watch their friends and family.

The breath-taking site, in a former slate mine in Blaenau Ffestiniog lets you play, slide, roll, jump and bounce from net to net in a cavern the size of a cathedral.

Following a massive refurbishment, the Bounce Below experience now offers four new industrial slides, the height of two double decker buses and six new levels of bouncing fun, giving underground adventurers 400 additional square metres to explore.

We were a bit nervous at first but once you’ve stepped out onto the giant nets you can’t help but bounce and just have the best fun. The new steel slides are much better than the old rope ones but not so fast that they scare you. You’ll be wearing a hard hat but the old red overalls have gone so make sure you check the advice on the Zip World web site about what to wear. Lockers are available for a £1 to store personal belongings – you don’t want your car keys, phone or favourite earrings disappearing through the nets to the bottom of the caves!

There’s an excellent cafe and gift shop on site and if some of your group don’t want to bounce or zip line then the Llechwedd Deep Mine Tour is at the same location. Now you can even climb aboard a giant 4 x 4 truck for a quarry tour above ground in the atmospheric mountain scenery.