Slievemartin

The walk up Slievemartin takes about 90 minutes if you're reasonably fit, and the payoff is genuine - you get proper 360-degree views across the Mourne Mountains and down towards Newry. It's not the highest peak around, but that's partly why it works. Less crowded than Slieve Donard, more straightforward than some of the rockier routes in the range.

The terrain is bog and grass underfoot, which means it can be boggy (obvious, really), so good boots matter. Weather rolls in fast here, so check the forecast before you head out. On a clear day you'll spot the Cooley Mountains across the border and the Irish Sea glinting in the distance.

Walkers will absolutely get the most from this one. It's not a casual stroll - you're climbing proper height - but it's not technical either. Families with older kids who don't mind getting their feet wet would be fine. Young children might struggle with the length and the exposed terrain.

Free to access, obviously. Just park at the base and go. If you're staying at Kilbroney Caravan Park nearby - less than a mile away - this is an obvious choice for an afternoon. The Mournes are brilliant for a walking-focused holiday, and Slievemartin fits nicely between easier day trips and the more serious peaks. Allow three hours return including a breather at the top and time to actually enjoy the views.