Gylen Castle

Getting to Gylen Castle involves a proper little adventure - you're looking at a ferry across to Kerrera island from Oban, then a walk to reach the ruins perched on the southern tip. It's not a casual stroll, but the effort pays off. What greets you is a 17th-century fortress that's been battered by centuries of Scottish weather, standing defiant against the Firth of Lorn. The castle itself is compact, roofless now, but the setting is what lingers: you're gazing out toward the Atlantic with the mainland silhouetted behind you.

Walkers will find this genuinely worthwhile. The island path winds through bracken and rough ground - decent boots matter - and the whole expedition takes a couple of hours including the ferry and exploration time. It's not busy, which is part of its appeal. Historians will appreciate the Macdougall clan connections and what the ruins tell you about 17th-century coastal defence, though you'll need to bring your own knowledge as there's little onsite interpretation.

Families with older kids handle it fine; younger ones might struggle with the uneven terrain and the exposed position. The castle itself has no railings, so supervising toddlers requires focus. Ferry timings control your visit, so check these before you go - they're seasonal and can be sporadic.

If you're based at Oban Holiday Park nearby, this makes a solid half-day detour that feels genuinely off the beaten path. Less touristy than Dunstaffnage Castle further up the coast, and infinitely more atmospheric.