Dairsie Castle

You'll find the ruins of Dairsie Castle standing alone in the Fife countryside, a short drive south of St Andrews. It's what remains of a 16th-century fortified house - basically four walls and a tower that's seen better days, but there's something rather compelling about it nonetheless. The castle sits beside the River Eden, which gives the whole spot a peaceful, slightly melancholic feel.

There's not much to do here in the traditional sense. You walk around the exterior, peer through the windows, maybe take a few photos if the light's right. Allow twenty minutes, perhaps half an hour if you're the type who reads every historical plaque twice. It's free to access and there are no opening hours to speak of - you just turn up.

Historically minded visitors and photographers will get the most from it. Families with young kids might find it a bit thin on entertainment unless they're keen on clambering over old stones. It works brilliantly as part of a bigger day out rather than a destination in itself. If you're staying at Craigtoun Meadows Holiday Park or The Rings nearby, it's an easy afternoon detour - particularly good for a quiet walk before heading back to your caravan.

The castle's modest in size and the ruins aren't dramatic, so manage expectations. But if you're exploring the St Andrews area and fancy something off the beaten track that doesn't require planning ahead or spending money, it does the job. Bring proper shoes though - the ground can be boggy depending on the season.