Dun Dige

The ruins of a Iron Age fort sit on a hilltop above Fort William, commanding views across Loch Linnhe that make the scramble worthwhile. Dun Dige isn't much to look at from a distance - just humps and bumps of stone - but once you're up there, the strategic genius of whoever built it becomes obvious. They chose this spot to watch everything moving through the Great Glen.

It's a proper walk rather than a casual stroll, steep enough that you'll feel it in your legs, and the path can be muddy. Allow a couple of hours there and back if you're reasonably fit. The archaeology nerds will get the most from this - understanding the concentric stone walls and imagining the settlement takes some knowledge - but the views alone justify the effort for anyone staying at Glen Nevis or Ben Nevis Holiday Parks nearby.

There's no visitor infrastructure, no café, nothing. It's free, obviously, and completely open access. Midges can be brutal in July and August, so go earlier in the season if you can. The site works brilliantly as part of a wider Highlands trip - combine it with Glen Nevis itself (just minutes away) or push further down to Linnhe Lochside Holidays' area for coastal walking. On a clear day the views from the top stretch for miles. On a grey one, you'll appreciate the shelter of your caravan that bit more.