Hafod Estate

The ruins of Hafod Estate sit in a remote valley inland from Aberystwyth, and they're genuinely worth the drive if you're into 18th-century folly architecture and a bit of Welsh history. What you're looking at are the remains of what was once an ambitious country house project - built by Thomas Johnes in the 1780s as a romantic retreat, complete with planned landscaping and estate buildings that were meant to showcase enlightened thinking.

You can walk around the ruins fairly freely. The main structure is mostly gone, but the bones of it remain - you get a proper sense of scale and ambition from what's left. The setting is everything here: deep valleys, planted woodlands, a real sense of isolation that explains why Johnes wanted to retreat here. It's atmospheric rather than spectacular.

History enthusiasts will spend a good hour picking through the details and imagining what it looked like. Casual walkers might find it a bit underwhelming on its own - there's not much to do beyond looking at stones and reading what interpretation boards tell you. Families with younger kids could get bored fairly quickly unless they're already into ruins.

If you're basing yourself at Woodlands Caravan Park or one of the other sites near Aberystwyth, Hafod makes a reasonable half-day excursion combined with a walk. The valley setting means you'll get some proper countryside in your legs. Just check access before you go - facilities and opening aren't always obvious, and the site isn't heavily signposted.