Three Rock Mountain

Walk guide

Three Rock Mountain (445m) sits on the southern edge of Dublin city with remarkable views over Dublin Bay. The walk passes the Fairy Castle (Dundrum Hill, 536m), the Three Rock summit tors, and the Ticknock Forest. A genuine mountain walk accessible from Dublin by bus — one of the few places where you can see both the city and the mountains from the same viewpoint.

Walk highlights

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Views over Dublin Bay and city skyline

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Three distinctive quartzite summit tors

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Fairy Castle — highest Dublin Mountains point

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Accessible by Dublin Bus 44B

Walk details

Distance8km

Duration3 hrs

DifficultyModerate

CountyDublin

Nearest hotelsDublin South

Hotels nearby1,840

From€75/night

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Questions answered

About Three Rock Mountain

How do I get to Three Rock Mountain?

Bus 44B from Dundrum to the Hellfire Club carpark, then on foot. Or drive to Ticknock Carpark on Glencullen Road.

Is it a difficult walk?

Moderate. Good fitness and proper footwear required on the upper moorland sections.

Can I see the sea?

Yes — Dublin Bay, Irish Sea, and Mourne Mountains in Northern Ireland on clear days.

Is it suitable for families?

Lower Ticknock Forest section is family-friendly. Summit requires experience.

Where to stay?

Dublin city or south Dublin suburbs. Book through IMPT — 1,840 Dublin hotels from 75 euros/night.

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