The Fruin

The Fruin isn't a genteel stroll. It's a proper hill walk from near Helensburgh with serious views across the Clyde estuary if you're willing to graft for them. The peak itself sits at 357 metres - not massive by Scottish standards, but the climb is steep enough that you'll feel it in your legs, and the exposed path near the summit demands respect in dodgy weather.

What makes it worth the effort is the 360-degree panorama once you're up there. On a clear day you can see right across to the Cowal Peninsula, down the Firth of Clyde, and back towards the Loch Lomond hills. The descent is where most people come unstuck - it's loose underfoot and relentless on the knees, so take it slowly.

This one's for walkers with decent fitness rather than families after an easy afternoon out. Kids aged ten-plus might manage it with encouragement, but younger ones will struggle. Allow two to three hours depending on pace. Go early on a weekend or you'll be dodging crowds of fit locals.

If you're based at Rosneath Castle Caravan Park, you're close enough for a half-day expedition, or combine it with Glenfinart Caravan Park as a base for exploring the wider Cowal area. The walk's free, naturally. Just check the weather forecast beforehand - this hill catches the clouds.