Gleann Cuilinn · Co. Dublin
The highest village in south Dublin sits 300 metres up in the mountains with the oldest pub in this part of Ireland and a walk that earns itself.
Glencullen is a south Dublin mountain village at about 300 metres elevation - one of the highest in Ireland. The R116 climbs up from Enniskerry direction in Wicklow or from the Sandyford side of Dublin, and the village sits at the point where both routes acknowledge the altitude.
Most people come for Johnnie Fox's. That's reasonable - it's been open since 1798, it's the highest pub in Ireland, and the interior is a cheerful accumulation of two centuries of bar equipment and decorative Irishness. The food is better than the decor suggests. Trad runs seven nights. It is self-consciously a destination pub and it carries that off without embarrassment.
But the mountains are the better reason. The Dublin Mountains Way passes through, and the walks to Killakee and across the Two Rock and Three Rock ridge give you views over Dublin Bay that the city itself can't offer. On a clear day in autumn you can see from the Wicklow ranges all the way to Howth. Twenty minutes by car from south Dublin, no direct bus - that combination of proximity and mild inaccessibility is precisely what has kept the mountains feeling like an escape.