Tolquhon Castle

The ruins of Tolquhon Castle sit just outside Ellon, and they're genuinely worth the detour if you're exploring Aberdeenshire. What remains is a decent sixteenth-century fortress - you get the old tower house, some proper defensive walls, and enough stonework to piece together what life was like here centuries ago. The courtyard layout is still clear, which helps you navigate the history without needing a guide.

Walking round takes maybe forty-five minutes unless you're the type who reads every interpretive board. The castle's positioned in open countryside, so the approach is pleasant enough, and you'll get decent views across the Aberdeenshire landscape. It's the sort of place that appeals to history enthusiasts and anyone keen on Scottish fortifications - families with young kids might find it a touch dull without some imagination, though climbing the remaining stairs works as a mild adventure.

The obvious advantage is proximity to Ythan Valley Campsite, which sits just a few miles away. If you're basing yourself there for a park holiday in the area, Tolquhon slots in nicely as a half-morning activity before moving on to other Aberdeenshire attractions. The site's fairly open and exposed, so pick a clear day if you want to actually see where you are rather than just wandering through mist.

Free to explore from the outside, and you won't need booking or planning ahead. Just turn up.