Beinn Narnain

The walk up Beinn Narnain starts proper steep from Arrochar, climbing through bracken and loose scree that'll test your legs and your patience in equal measure. It's one of the Arrochar Alps - that cluster of peaks that rise dramatically above the village - and the views back down to Loch Long make the huffing and puffing worthwhile. The summit sits at just over 3,000 feet, so it's not a casual stroll, but it's not a full-day expedition either. Most walkers manage it in three to four hours return, depending on fitness and how many photo stops you take at the top.

This is unmistakably hill-walker territory. Families with young children will struggle unless yours are seasoned hikers. The views are genuinely cracking - across the Clyde Valley and towards Ben Lomond on a clear day - but the terrain is rough and unforgiving, especially on descent when loose stones make footing dodgy. Boots are non-negotiable, and a decent map or GPS is sensible if you're not confident with navigation.

If you're staying at Forest Holidays Ardgartan Argyll or Loch Lomond Holiday Park, Beinn Narnain makes an excellent half-day outing in decent weather. Go early to beat the crowds and catch the light. The West Highland Line runs through Arrochar if you're not driving, which takes the pressure off finding parking near the trailhead. Midweek visits are notably quieter than weekends.