Mountains & Viewpoints in County Dublin

The high ground around the bay falls into two coastal groups and one inland. North of the city, Howth sits on a headland about thirty minutes out on the DART, with a working fishing harbour, seafood restaurants along the piers and five colour-coded walks out along the sea cliffs. The Baily Lighthouse stands on the southern tip of the same headland, an 1814 granite tower still working as a beacon; you cannot get in, but the cliff path passes close and the summit car park looks across the bay to Dún Laoghaire and Bray.

Directly across the water, Killiney Hill rises 153m to the obelisk John Mapas put up in 1742 as famine-relief work, reached by a short climb from Burton Road. Inland, the hills begin around eight kilometres from the city core: Carrickgollogan is a walk through Coillte woodland to a 360-degree summit and the last granite flue chimney left from the old lead-mining trade, and Tibradden is a marked 2.4 km climb through pine forest to a full sweep of Dublin Bay.

Howth and Killiney need no car. The mountain summits, and the eight stages of the Dublin Mountains Way running 42.6 km from Shankill to Tallaght, are easier with one. Cold, clear days are what all of these views depend on; low cloud closes them off entirely.

Where to start

  1. Howth – harbour, cliffs and Ireland's Eye Howth

    A headland thirty minutes out on the DART, with a working fishing harbour, seafood on the piers and five colour-coded cliff walks.

  2. Killiney Hill – the obelisk and the view Killiney

    A short climb from Burton Road to a 153m obelisk, taking in the city to the north and Bray Head and the Wicklows to the south.

  3. Baily Lighthouse – Howth Head Howth

    An 1814 granite tower on the southern tip of Howth Head, gated off to visitors but passed closely by the cliff path.

  4. Carrickgollogan Dún Laoghaire–Rathdown

    A short woodland walk to a 360-degree summit and the only surviving long-run flue chimney from Ireland's 19th-century lead-mining trade.

  5. Dublin Mountains

    Forested valleys, open heath, the Hellfire Club ruins and the old Military Road, all about eight kilometres from the city core.

19 of 20 shown — tap a pin for the place.

Coast Trail, Baily Lighthouse, Howth Head, Dublin, Co Dublin
Coast Trail, Baily Lighthouse, Howth Head, Dublin, Co Dublin Courtesy Caroline O'Keeffe

Baily Lighthouse – Howth Head

Howth, dublin

Baily Lighthouse sits on the southern tip of Howth Head, an 1814 granite tower that's still an active beacon over Dublin Bay. You can't go in – it's private and gated off about 100 metres short – but the cliff path passes close, and the view from the summit car park over the bay to Dún Laoghaire and Bray is one of the best near Dublin.

🌳 Outdoor 🐕 Dogs Welcome
Ballycorus old Lead Mines Tower, Dublin Mountains Way, Shankill, Co Dublin
Ballycorus old Lead Mines Tower, Dublin Mountains Way, Shankill, Co Dublin Courtesy Paola Floris, Failte Ireland

Dublin Mountains Way – Shankill to Tallaght

Dublin, dublin

The Dublin Mountains Way crosses the hills from Shankill to Tallaght in 42.6 km, past wedge tombs and Bronze Age cairns, granite ridges and the highest pub in Ireland. Sport Ireland rates it strenuous and it splits into eight stages, so most people walk a section at a time rather than the lot. The full route opened in 2010; it is free and waymarked with a yellow walking-man on black.

🌳 Outdoor 🐕 Dogs Welcome
Dromod Railway Station, Sligo-Dublin Line
Dromod Railway Station, Sligo-Dublin Line Sarah777 / Wikimedia Commons / Public domain

Dublin–Sligo line – the northwest by rail

Dublin, dublin

Ireland's only direct rail line to the northwest, opened in full on 3 December 1862 by the Midland Great Western Railway. InterCity 22000 Class trains run from Dublin Connolly to Sligo Mac Diarmada up to eight times a day, covering 216 km (134 miles) in about three hours through Mullingar, Longford and Carrick-on-Shannon. The midland scenery is ordinary until the Shannon crossing and the first sight of Benbulben near Sligo.

🌳 Outdoor
Explorium, The National Sport and Science Centre, Sandyford, Co Dublin
Explorium, The National Sport and Science Centre, Sandyford, Co Dublin Courtesy Explorium

Explorium – hands-on science in the Sandyford hills

Sandyford, dublin

Explorium is a 110,000 sq ft interactive centre on Blackglen Road above Sandyford, holding more than 300 science and sport exhibits across junior, science and sport zones. Draws include a Tesla coil, gravity rooms, a 360-degree loop bike, F1 simulators and paid extras like climbing and indoor caving. It's an indoor, all-weather day out best for children aged roughly four to fourteen, though it gets dear once the add-ons stack up.

🎯 Activity 🅿️ Free Parking

Questions people ask

Which Dublin viewpoints can I reach without a car?
Howth and Killiney Hill both sit on the DART line. Howth is roughly thirty minutes from the city and the cliff walks start near the harbour; Killiney Hill is a short climb from Burton Road. The mountain summits are easier with a car.
Where do these places cluster?
In three areas. Howth and the Baily Lighthouse share one headland north of the bay. Killiney Hill and Carrickgollogan sit along the southern shore in Dún Laoghaire–Rathdown. Tibradden, the Hellfire Club and the Dublin Mountains Way are inland in the hills.
Can you go inside the Baily Lighthouse?
No. It is private and gated off about 100 metres short of the tower, and it is still an active beacon. The cliff path passes close by, and the view from the summit car park across the bay to Dún Laoghaire and Bray is the reason most people come.
Which is the easiest climb for a big view?
Tibradden, a well-marked 2.4 km walk through Coillte pine forest to a full sweep of Dublin Bay, or Carrickgollogan, a short woodland walk to a 360-degree summit. Both are free and neither takes long.
Do I have to walk the whole Dublin Mountains Way?
No. The route covers 42.6 km from Shankill to Tallaght, splits into eight stages and is rated strenuous by Sport Ireland, so most people walk one section at a time. It is free and waymarked with a yellow walking figure on black.

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