A thrilling subterranean journey to explore the disused Welsh mines in the Snowdonia National Park. You will encounter hidden lakes, lofty caverns and ancient machinery from a bygone era. The journey includes zip wire traverse, climb rock faces, boat across the water, abseil off ledges and scramble over boulders. A true Indiana Jones excursion into the unknown. The journey is through generous sized passages which allows you to stand throughout the activity.

The journey lasts 3 hours, but allow 5 hours to walk up to the entrance and exit.

It's a natural adventure playground for grown-ups, as we go boulder hopping, splashing along in the river, jumping into rock pools, and sliding down granite slabs. An energetic, exhilarating experience amid stunning scenery, with sheer rock walls rising on both sides of the river - it's like a lost world. Bring sturdy footwear with a good grip - and a sense of fun! All under the supervision of your experienced guide.