Gwanas-Fawr Roman Marching Camp

You won't find much more than scattered earthworks and a commanding view across the Snowdonian landscape, but that's precisely what makes Gwanas-Fawr worth seeking out. This Roman marching camp sits high above Dolgellau, a practical military stopping point rather than a fortress - the kind of place where legions bivouacked for a single night during their Welsh campaigns around 80 AD.

The site itself demands a bit of imagination. The ramparts have flattened considerably over two millennia, and there's no visitor centre or interpretation boards to hold your hand. What you get instead is the satisfaction of standing where Roman soldiers once stood, reading the landscape as they would have done - the strategic position, the good water access, the sightlines across the valley. History enthusiasts will find this genuinely engaging; families with young children might struggle unless they're already keen on Roman Britain.

Allow an hour for the walk and a proper look around. The approach from Dolgellau takes you through proper hill country, so decent boots are essential and the weather can turn quickly. Free access, naturally, though you'll need to ask locally for exact directions - the site isn't signposted.

If you're camping nearby at Llwyn yr Helm or Torrent Walk, this makes a cracking half-day excursion. Pair it with a walk through Coed y Brenin forest park just north of Dolgellau, and you've got a solid day's exploring.