Rob Roy's Cave

The cave sits about twenty minutes' walk uphill from Arrochar, tucked into the hillside above a burn with proper Highland views across the glens. It's more of a rocky alcove than a dramatic cavern - Rob Roy MacGregor supposedly used it as a hideout, though honestly the history is thin on detail and thick on local legend. Still, the scramble up is pleasant enough, and once you're there you get the sense of why an outlaw might have chosen it: secluded, defensible, close to water.

Historically minded visitors and keen walkers will find it worthwhile. Kids can manage the walk if they're steady on their feet, though it's not a five-minute stroll. The real appeal isn't the cave itself but the excuse for a decent hike with proper Highland atmosphere - Arrochar's got that dramatic landscape where mountains feel genuinely close.

There's no entrance fee or facilities, just a path that locals know. Allow an hour return trip if you're not rushing. Morning light works better than afternoon if you're taking photos.

Stay at Loch Lomond Holiday Park less than a mile away and you're perfectly placed for exploring this stretch of Argyll. It's the sort of thing you slot in alongside bigger walks in the area rather than making a dedicated trip, but if you're camped nearby and fancy a bit of hillside rambling with a touch of outlaw legend attached, it fills a morning well.