"A fabulous adventure - unlike anything I have ever done before."

Lee S.

Founded in 2019, we are the first company to offer guided tours of abandoned Cornish tin mines. Now, at last, you can experience the hidden side of Cornwall only a precious few have ever seen. As 'proper Cornish' as Ross Poldark himself, top of your list of things to do in Cornwall should be visiting a Cornish tin mine with us.

Based in the far west of Cornwall, we use mines in and around the St. Just mining district, part of The Cornwall and West Devon Mining Landscape World Heritage site. We hope to offer adventures in other areas of Cornwall in the future, but for now, we are very close to St. Ives, Penzance and Sennen Cove. We are also within reasonable distance of many major Cornish tourist destinations, such as Falmouth, Newquay, Perranporth and the Lizard Peninsula.

We are a passionate group of mine explorers, mine historians, and outdoor activity enthusiasts. We have many years of combined experience exploring Cornwall's old mines. We have walked, crawled, abseiled and climbed miles of passages and shafts, re-tracing the miners’ footsteps that were there hundreds of years before us. We believe in bringing the past to life with authentic adventure and expert guidance.

Meet your Mine Guides

Cornwall UNderground Adventures guide bolting a traverse in a Cornish tin mine.


Matt is an experienced outdoor activity provider. He runs Kernow Coasteering, offering coasteering and rock climbing in Cornwall and the Isles of Scilly. He loves exploring Cornwall's old mines, especially down in the far west of the county. He is also an avid rock climber, and of course, coasteering maestro.

Matt is also a keen photographer, specialising in landscape, astro, and macro photography. Check out his photography website here.


Ben is one of Cornwall's foremost mining historians, with an encyclopaedic knowledge of all things Cornish mining. He's possibly been down more Cornish mines than any other person and knows of every shaft, adit, and tunnel this side of the Tamar. Ben also scares onlookers silly with his unique off-road (and underground) parkour feats!

Cornwall Underground Adventures guide exploring in a Cornish cliff mine.


Exploring abandoned mines can be very dangerous. That does not mean that you cannot explore mines safely! At Cornwall Underground Adventures, your safety is our top priority. You can enjoy your underground experience knowing that you are in safe hands.

  • As well as a wealth of experience, our guides are qualified mine leaders holding qualifications administered by the British Caving Association.
  • Your guide will always hold a valid First Aid award.
  • Our mines have been approved for use with groups by a registered mine inspector.
  • We hold public liability insurance to cover all aspects of our activities.
  • We only use top quality, industry standard equipment.

If you have any concerns about the safety of going underground with us, please read our FAQ, or Get in touch.

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