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Zip-line underground in WalesBlaenau Ffestiniog, Wales

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Venturing below the earth’s surface may not conjure thoughts of soaring vast distances with abandon. But beneath the countryside of Snowdonia, the Zip World Caverns are challenging the status quo. Caves within 200-year-old slate mines in Blaenau Ffestiniog have been sectioned off and transformed into the world’s largest underground zip-line course.

The grotto’s 11 zip-lines, as well as rope bridges and via ferratas, are suspended almost 30 metres above the cavern floor, ensuring non-stop adrenaline. Colourful lights illuminate the immense caves and narrow chambers as you zoom through. Becoming part of the underworld has never been more exhilarating.

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not sure?

It’s positively otherworldly down there!
Bragging to your mates about your daring afterwards

This isn’t for the claustrophobic or those packing a fear of heights

get there

Your best option is by taxi. From Betws-y-Coed, one of the main towns nearby, it’s about a 20-minute drive and will cost around US$15-20 one way. Most taxi companies here are individually owned and need to be booked in advance. Ask reception at your hotel to organise one for you or, if you’re passing through, the visitor’s centre can also set you up.

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