The Top 8 Peaks around Dún Laoghaire–Rathdown
Whether for the view or for the challenge, climbing the mountainous peaks around Dún Laoghaire–Rathdown is the best way to experience more of this beautiful region. But with 8
to choose from, it can be tough to know which peak to proceed with. That’s why we’ve collected the best peaks and summits around Dún Laoghaire–Rathdown for you here — so you can easily add one to your next adventure.
to choose from, it can be tough to know which peak to proceed with. That’s why we’ve collected the best peaks and summits around Dún Laoghaire–Rathdown for you here — so you can easily add one to your next adventure.
Last updated: October 21, 2025
Two Rock Mountain (Fairy Castle) Summit
Highlight • Summit
Beautiful views over Dublin. Easy hiking and good trails from several directions. The summit is also known as Fairy Castle.
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Wicklow Way and Dublin Mountain Way Junction
Highlight • Trail
The intersection of the Wicklow Way (WW) and the Dublin Mountain Way (DMW) near Fairy Castle in Ticknock is a crucial cross of paths for outdoor enthusiasts exploring Wicklow mountains. …
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Killiney Hill and Obelisk
Highlight • Viewpoint
Easy walk spot close to Dalkey/Killiney, with panoramic views over Killiney Bay, into the Irish sea and on a particularly clear day, sometimes Wales may be seen. Bray Head on the south of the bay and Wicklow mountains also feature.
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Three Rock Mountain
Highlight • Summit
Three Rock Mountain is part of a group of hills in the Dublin Mountains. Towering at 1,475 feet (444 m), it has wonderful views over the surrounding landscapes. Three groups …
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Fairy Castle Summit
Highlight • Summit
Top of the Three Rock mountain! Rewarding view after a tough off-road climb. It can be very busy with hikers at the weekend so be carful and try to go outside of peak times.
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Prince William's Seat
Highlight • Summit
With a summit height of 555m, Prince William's seat is on the border of Dublin and Wicklow mountains. Great views in all directions from the trig point.
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Carrickgollogan Hill
Highlight • Summit
Fantastic view from the top of Carrickgollogon Hill. A reasonable climb on tight packed gravel, but it's worth the effort, as the views of the Wicklow Mountains and Dublin are well worth it.
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Knocknagun
Highlight • Natural Monument
Interesting rock formation on the way up to or down from Prince William. The terrain is tough going in winter or if it's been raining for a while, but it's a fun spot to explore.
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