The venue is nestled inside the Llechwedd Slate Caverns — a former Victorian slate mine in Blaenau Ffestiniog
The world's largest underground trampoline park lies in caverns which are twice the size of St Paul's Cathedral.
The set of three giant trampolines are nestled inside the Llechwedd Slate Caverns — a former Victorian slate mine in Blaenau Ffestiniog.
Bounce Below can be reached by train and each trampoline is by a 60ft long slide levitated above endless drops - so it's not for those who have a fear of heights.
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