Embark on one of the world’s greatest underground adventures with Zip World’s unforgettable Caverns experience. Atmospheric, unique and hidden for nearly 200 years, this extraordinary subterranean world is now yours to explore. Venture deep beneath the Welsh mountains and test your head for heights in a series of underground chambers. Zip, traverse and climb your way through this unparalleled adventure course, tackling zip lines, rope bridges, via ferrata routes and winding tunnels — all set within a historic slate mine steeped in fascinating history. After a full safety briefing and kitting up, you will set off into the caverns, with expert instructors on hand throughout to guide and support you whenever needed. It’s the ultimate all-weather adventure — challenging, exhilarating and guaranteed to push you beyond your comfort zone. Caverns will leave you feeling accomplished, energised and ready for your next big challenge — because that’s what real adventure is all about.
Buying as a gift? Frequently Asked Questions
Most customers buy a flexible voucher and book later. Here are the key things to know:
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Overview
- Take on a unique subterranean adventure course, set deep beneath the surface.
- Explore vast underground Snowdonian caverns, carved from historic slate.
- Navigate the course via zip lines, rope bridges, via ferrata routes and tunnels.
- Complete a full training and safety briefing with instructors before heading out independently.
- Adrenaline level: 5/5
- This voucher is valid for One person.
What's Included
- Discover a one-of-a-kind subterranean adventure course, set deep beneath the surface.
- Journey underground into a historic Victorian slate mine, where you will zip, traverse, leap and climb through a former working quarry.
- Fly through the caverns on multiple underground zip lines.
- Take on rope bridges, tightropes, via ferrata routes and more challenging obstacles.
- Receive a full training session and safety briefing before entering the caverns.
- Training and safety course led by instructors before heading out independently
- After training, tackle the main course — with the full experience lasting around 3 hours.
- Adrenaline level: 5/5 – an unforgettable underground thrill.
Suitable For
- Supervision required: One participating adult must accompany children. Ratios apply — ages 10–12: 1 adult per 3 children; ages 13–17: 1 adult per 7 children.
- Minimum height: Must be able to reach 6ft (182.88cm) when standing.
- Maximum height: 6ft 8in (203.2cm)
- Minimum weight: 4st 11lb (30kg).
- Maximum weight: 20st 4lb (130kg).
- A good level of physical fitness and confidence is required due to the physical and mental challenges involved.
- If you have medical conditions such as heart issues, claustrophobia or epilepsy, please consult the supplier before booking to confirm suitability.
- Not suitable for pregnant women.
- Experience content, equipment and restrictions may vary.
Availability
- Available on selected dates. Excluded dates will apply
- We recommend you book at least four weeks in advance to ensure that dates are available.
- All bookings are subject to availability
Location:
- Set on the picturesque outskirts of the historic quarrying town of Blaenau Ffestiniog, Zip World Llechwedd blends seamlessly into the dramatic landscape, with many of its adventures hidden underground.
- Conveniently located just off the main road, with easy access by car and nearby bus and train links.
- Blaenau Ffestiniog, Gwynedd, Wales, LL41 3NB.
Restrictions
Minimum Height: 182.88 cm
Maximum Height: 203.20 cm
Maximum Weight: 130.00 kg
This product is not eligible for promotional discount codes.
Anything Else
- Please arrive 30 minutes before your adventure start time to allow for check-in
- Wear warm, comfortable clothing suitable for the weather, along with walking boots or trainers
- You are required to wear gloves to take part in this adventure - You can bring your own or purchase them on the day
- The site is fully cashless, accepting card and mobile payments only
- Well-behaved dogs are welcome at all locations
- Indulge in a delicious menu or grab a quick bite to go at the Llechwedd Caffi.
- On-site parking is available (parking charges apply)
- All year round, this underground space keeps a steady temperature of 6-8 degrees Celsius.
How the Voucher Works
- Purchase the voucher online
- Receive your e-voucher or gift pack
- Redeem online to select location and date
- Enjoy your experience
