Meregill Hole Aven Entrance

The entrance to Meregill Hole is a proper adventure if you're into caving or geology - a natural opening in the limestone landscape near Carnforth that drops down into a system of passages and chambers below. What you'll see depends entirely on how far you're willing to venture: the entrance itself is accessible and gives a sense of the scale, but going deeper requires proper caving gear and experience. It's not a tourist cave with handrails and guided tours. This is the real thing.

Walkers and keen cavers get the most from it. Families with young kids might find just poking around the entrance satisfying, though it's bit muddy and you'll need sturdy boots. The geology buffs will have a field day - the cave system is carved through Carboniferous limestone, which tells its own story if you know how to read it.

There's no visitor centre, no admission charge that I'm aware of, and no formal opening hours - it's a natural feature you access on foot. Allow a couple of hours if you're planning to explore properly, though you can duck in and out in fifteen minutes if you're just having a look.

Stay at Primrose Glamping Pods or Orcaber Farm Caravan & Camping Park and you're perfectly placed for a Yorkshire limestone tour. Meregill Hole sits nicely alongside other walks and natural features in the area - it rewards the kind of holiday where you're actually getting your boots on and exploring rather than ticking boxes.