Castell Dryslwyn

The ruins of this medieval castle sit on a steep wooded hillside above the River Towy, just a short drive from Carmarthen. What you get is a proper scramble up through trees to reach the remains of a 13th-century fortress - crumbling stone walls, a collapsed tower, views across the valley that make the climb worthwhile. It's not a grand castle experience. There's no visitor centre, no interpretation boards, just you and the Welsh countryside.

Historically minded walkers will find it absorbing. Families with young kids might struggle with the steep approach and lack of facilities, though older children who enjoy a bit of an adventure will be fine. The site feels genuinely remote despite being minutes from civilisation. Allow 45 minutes to an hour if you're taking your time with photos and the view.

Access appears to be free and unrestricted, though do check locally before you go - these Welsh castle remains don't always have official visitor information online. The nearest town is Carmarthen, where you can grab a coffee before or after.

If you're based at Towy Valley Caravan Park just 1.7 miles away, this is an easy half-day outing to break up a park holiday. It pairs well with walks along the River Towy itself. Worth the detour if you're into castles and don't mind a bit of a clamber through overgrown paths. If you're after manicured heritage sites with gift shops, look elsewhere.