Sunset Hole (West Enterance)

The West Entrance to Sunset Hole isn't what you'd call obvious - you'll need to do a bit of poking around near The Grove before you find it, but that's rather the point. This is a proper cave system tucked into Dorset's coastline, and the name comes from the particular way light floods in during late afternoon, turning the rock face golden. It's less a tourist trap and more a spot where you feel like you've stumbled onto something genuine.

What you get is a reasonably sized cave mouth leading back into darkness - bring a torch if you're going any distance. The formations inside are modest by show-cave standards, but there's something rather thrilling about exploring them without the full-blown visitor centre treatment. Families with older kids will enjoy it; very young ones might find the darkness unsettling.

It's free to access as far as we can tell, though access can be tricky depending on tides and weather. Coastal caves in Dorset are prone to flooding, so check conditions before you head out. Allow an hour or so if you're just exploring the entrance chamber. If you're staying at Chesil Beach Lodge Park just down the coast, it's an easy detour - the kind of thing that breaks up a beach-focused holiday without demanding a full morning's commitment.

This isn't a major attraction, and it shouldn't be. That's exactly why it works.