from £68.00
  • Number of zips 13
  • Other elements? Via Ferrata, rope bridges, tightrope...
  • Duration 3 hours
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Caverns Essentials

About Caverns

A challenging underground course, Caverns is a one-of-a-kind experience that takes up to 3 hours and will leave you exhilarated and drained in equal measure. Set in a historic slate mine, the various nooks, crannies, tunnels and chasms have been brought back to life with 13 zip lines, as well as via ferrata, rope bridges, tightropes and more, to push your bravery and endurance to the ultimate test.

It’s the perfect family day out in the heart of North Wales, with real teamwork and encouragement required to help each other round the course. It’s also a favourite amongst couples, as well as stag and hen parties – a truly unique activity that will provide a lifetime of memories.

Being completely underground, Caverns is an all-weather activity, making it a good plan for when the worst of the Welsh weather hits. It’s located at Zip World Slate Caverns in Blaenau Ffestioniog in the heart of Snowdonia National Park. If you’re not quite up to the challenge, Bounce Below is right next door, where you can let loose and have fun in the same stunning setting on our bouncy trampoline-style nets.

Souvenir Video

Need a Basecamp for the Night?

Are you looking to extend your experience into the night? Whether you're soaring through the skies or delving deep underground, ensure your journey is complete with a comfortable Basecamp for the evening. Explore our unique accommodations tailored to adventurers like you.

Book a Basecamp

Who's it for?

130kg max
Min 1.8m Flat Footed
Ratio 1:3
1 participating adult 18+ for every 3 people <18
Warm clothing, gloves and trainers or boots must be worn on this adventure (t-shirts and shorts are not advised)

What is a Summit site?

Unlock your full potential at a Zip World Summit site; from the world’s fastest zip line, to the UK’s only underground bouncy playground, the ultimate experience awaits on our world-class Summit sites; the best-of-the-best when it comes to unique, extraordinary adventure activities, restaurants and facilities.

Step into a whole new world and soak up the stunning locations, some of which are based in world-heritage status areas, and enjoy the thrill of adventure in a breath-taking space you’ve never before experienced. Unlock your potential and push yourself to embark on a truly epic, memorable adventure that will leave you feeling accomplished. Enjoy everything the site has to offer, including exceptional food and beverage options, comfortable facilities, and WiFi.

Where are we?

The Slate Caverns includes an experience for almost everyone, from Titan, the first 4 person zip line in Europe to the unique, all weather underground adventures that are Bounce Below and Zip World Caverns.


Zip World Llechwedd
Blaenau Ffestiniog, LL41 3NB

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Play, eat, drink

Llechwedd Cafe

If you’ve been underground or flying over the mountains you’ll need something to eat or drink. Pop over to our cafe for fresh local food, such as tasty burgers or crisp fresh salads.

Cashless site (card payments only) Cashless site (card payments only)
Photos and head cam hire available (selected adventures only, additional cost applies) Photos and head cam hire available (selected adventures only, additional cost applies)
On-site car parking (fees apply) On-site car parking (fees apply)
Toilets Toilets
Cafe and outdoor picnic benches Cafe and outdoor picnic benches
Gift shop Gift shop
Additional activities on site Additional activities on site
Lockers available £1 Lockers available £1
Dog care available (pre-booking required) Dog care available (pre-booking required)

There's loads more to do on this site

See what we've got to offer

Underground Golf

Llechwedd Quarry Tour

Bounce Below

Deep Mine Tour

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