Go Below Underground Adventures

About

Experience Snowdonia like never before with Go Below Underground Adventures, where four world class underground trips take you deep beneath the mountains, including extensive journeys inside the world’s deepest slate mine. From soaring ziplines and underground freefall jumps to hidden lakes, waterfalls and vast caverns, this is adventure in Wales taken to extraordinary depths.

Led by expert guides, every journey combines adrenaline with authentic storytelling, revealing the fascinating history of Wales’ slate mining heritage, uncovering a side of Snowdonia few people ever see. No previous experience is required and all specialist underground safety equipment is provided. There’s no tight squeezing or potholing, just epic exploration whatever the weather, all year round.

The Challenge (10+) is Go Below’s original adventure and the ideal first step into the underground world. Begin with a scenic hike through historic quarry landscapes before descending into hand carved tunnels where history and adventure line your path through the mountain. Along the way, abseil into echoing caverns, climb a cascading underground waterfall, boat across a forgotten blue lake and uncover authentic mining artefacts left untouched for generations.

For thrill seekers, Hero Xtreme (14+) and Ultimate Xtreme (18+) push adventure to legendary levels inside the fearsome Cwmorthin Mine. Cross suspension bridges over gaping chasms, traverse exposed ledges, tackle towering underground ziplines and descend to the deepest accessible point in the UK. Highlights include the mighty Goliath, the world’s longest and deepest underground zip ride and the world’s first underground 70 foot freefall jump.

For something truly unique, Deep Sleep invites you to experience an extraordinary overnight stay in the world’s deepest underground accommodation, located 1,375 feet beneath the mountains of Snowdonia. This rare retreat blends history and comfort and a sense of adventure, creating an atmosphere unlike anywhere else on Earth. Spend the night in snug private Cabins or choose the exclusive luxury Grotto for a truly distinctive escape.

Whether you’re an adrenaline seeker, history lover or curious explorer, Go Below Underground Adventures delivers an unforgettable journey into Wales’ hidden underworld. Unleash your inner hero and adventure downwards. Adventure starts where daylight ends.