This Psychedelic Trampoline Playground is the Most Fun You Can Have 100ft Underground

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More revelers enjoying Bounce Below's underground trampolines
Image: Relaxed Pace

However, when visitors – or “bouncers,” to use the attraction’s phrase – arrive at Llechwedd Slate Caverns, there’s relatively little to suggest the otherworldly experience that awaits them. After a safety briefing and the donning of protective gear, though, bouncers make their way down to the playpark via a train that takes five minutes to transport them to the cavern 100 feet below ground.

A bouncer leans back on a net at Bounce Below
Image: Relaxed Pace

When the train arrives at its destination, the bouncers are afforded a first glimpse of the giant trampoline nets. These are extended across an area that measures an incredible 100 feet by 60 feet – big enough to accommodate St. Paul’s Cathedral twice over. The three trampoline-like structures match the width of the cavern and are suspended at 20 feet, 60 feet and a vertigo-inducing 180 feet above the floor of the space. Whichever trampoline net visitors choose to play on, however, they can rest assured that it’ll safely hold their weight.

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Bounce Below's subterranean trampolines sure look like fun
Image: Relaxed Pace

Visitors then walk along a platform and out onto a net for an hour of bouncing, jumping, flipping, spinning, climbing, and sliding down the chutes. Given the exhilarating experience, it’s likely that laughter will also be heard reverberating off the cavern walls.

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