Dundrennan Abbey

Red sandstone ruins rising from the Galloway countryside - that's Dundrennan Abbey, a Cistercian monastery founded back in 1182. What you get now are the skeletal remains of the abbey church, cloisters, and domestic buildings, enough to understand the scale of what this place once was. The stonework is genuinely striking, especially on a grey Scottish day when the red really pops against the clouds.

History buffs will appreciate the fact that Mary Queen of Scots spent her last night of freedom here in 1568 before crossing the Solway Firth to England - a grim footnote to explore among the quiet stones. It's the kind of place that rewards a slow walk around, reading the carved details and imagining the monks' routines across centuries.

The site sits just a few miles outside Kirkcudbright, which means it works brilliantly as a half-day stop if you're based at one of the nearby holiday parks like Silver Craigs or Solway View. Families with older kids will manage fine - there's space to roam and the ruin itself holds their attention better than you'd expect. Little ones might lose interest after forty minutes, though.

Free to wander around, no admission charge that I could find, though it's worth checking ahead as these arrangements change. Allow an hour minimum if you're actually looking at the stonework rather than just passing through. Best visited on a clearer day if you can manage it - the mood's quite different when you can see across the valley.