Devil's Dyke

Walking the Devil's Dyke east of St Albans feels like stepping back into genuine Anglo-Saxon England. This is a proper ancient earthwork - a substantial bank and ditch that runs for miles across the Hertfordshire countryside, built sometime between the 5th and 7th centuries as a defensive boundary. The scale of it hits you when you're actually standing on it. Someone shifted an enormous amount of soil by hand, and for good reason.

It's not a manicured tourist attraction with visitor centres and interpretation boards. The dyke is simply there, part of the landscape, a raised ridge you can walk along for considerable distances. The views across open countryside are genuinely lovely, and on a clear day you get a real sense of why someone chose this line as a frontier. History types will find it utterly compelling - it marks the boundary between Saxon kingdoms, and walking it connects you to that period in a way reading about it never could.

Families with decent walkers will enjoy it too, though younger children might find the appeal abstract unless you're good at storytelling. There's no entrance fee, no opening hours - you simply access it from local paths and footpaths. Allow a couple of hours if you want to do a proper section rather than a quick dash.

It works well as part of a broader Hertfordshire ramble from any of the caravan parks nearby - Commons Wood is handy at 4.5 miles away, and Cherry Green Trees, rated highly, sits at 4.8 miles. Worth combining with walks through the surrounding countryside rather than treating it as a standalone stop.