Castle of Loch Dochart

The castle sits on a small island in the middle of Loch Dochart, which makes it properly atmospheric - you can't just wander up to the front door. What's left are the ruins of a 13th-century stronghold that once belonged to the MacDougalls, and it's one of those places that rewards a detour if you're exploring the Trossachs or heading between Crianlarich and Tyndrum.

You'll want decent binoculars or a telephoto lens to see much detail from the shore, though the setting itself is the real draw. The loch is calm most days, which means the castle's reflection doubles the impact. It's the kind of spot where walkers passing through Crianlarich add an hour to their route just to look across the water and snap a few frames.

History buffs will appreciate the medieval bones of the place, but honestly, you're not getting inside for a proper explore - the island keeps its secrets. That said, there's something satisfying about seeing a fortress that's survived this long without being turned into a visitor centre or gift shop.

If you're staying at Tyndrum Holiday Park, it's barely five miles away and works well as a gentle morning walk. Allow 20 minutes from Crianlarich to the best viewing point. There's no formal admission charge, no set hours to worry about, which means you can turn up when light's best. Autumn's your sweet spot here - fewer midges and the water's often like glass.