Castle Moil

The ruins of Castle Moil sit on a rocky tidal island just off Kyle of Lochalsh, visible from the shore but demanding a bit of effort to reach properly. It's a three-storey keep that once guarded the strait between the mainland and Skye - built in the 1200s, though which clan originally raised it remains properly contested. What draws you here isn't grandeur; it's the raw Highland setting and the satisfaction of picking your way across to the island when the tide allows.

Reach it at low tide and you can walk across the seaweed-slick rocks to explore the remains. The structure itself is frankly knackered - no roof, crumbling walls, windows you can barely make out - but standing among the stones with views across to Skye feels worth the scramble. It takes maybe thirty minutes total, depending on how long you linger. Walkers and history types will find it absorbing; families with small children might find the access a bit dicey.

Kyle of Lochalsh itself is a proper working village rather than a tourist showpiece, which lends Castle Moil authentic appeal. If you're based at Reraig Caravan & Camping over on Skye, it's barely twenty minutes away and pairs well with a coastal walk. Go at low tide - check tide times before you set out - and wear decent shoes. Free to visit, naturally. Don't expect facilities; bring what you need.