Dumgoyne

That distinctive volcanic plug rising abruptly from the Stirling landscape is Dumgoyne, and it's properly worth climbing if you've got decent legs and a couple of hours spare. The walk itself starts straightforward enough - you're gaining just over 400 metres, which sounds modest until you hit the steeper sections near the top. The reward is a 360-degree view across the Lowlands toward the Campsies and beyond. On a clear day you can pick out Glasgow's urban sprawl to the south.

This is a hill for walkers who like their exercise without needing ropes and harnesses. Families with older kids will manage fine; younger ones might struggle with the final push. History buffs get a bonus - the volcanic geology here tells a story 350 million years old, though the hill itself keeps quiet about it. You won't find facilities or signage declaring opening hours because there aren't any. It's just a hill, free to walk, best tackled in daylight.

If you're basing yourself at one of the nearby glamping spots - The WHW Hotel & Campsite is closest at under two miles - Dumgoyne makes a natural morning or afternoon outing. It pairs well with exploring Loch Lomond's quieter corners or the walking trails through the Campsies. Allow three hours return including a summit sit-down. Go early if the weather's decent, because once clouds roll in, the view vanishes.