Go Below Underground Adventures

Go Below takes you into the otherworldly depths of abandoned Victorian slate mines beneath Snowdonia. This isn't caving - it's underground adventure on an industrial scale, with zip lines, scrambles, and boat journeys through vast caverns.

The Challenge Adventure (£69, age 10+) includes underground zip lines, rope bridges, and boat crossings. Hero Xtreme (£79, age 12+) ups the ante with longer routes. Ultimate Xtreme (£109, age 18+) is a 7-hour epic reaching 1,375 feet below surface - the deepest public access point in the UK.

What makes Go Below unique is the sheer scale - these are enormous Victorian industrial caverns, not tight potholing passages. Claustrophobes generally cope fine. Reviews are exceptional.