The heather scratches your shins as you crest the ridge, and suddenly Dublin Bay opens up below you like a map, Howth Head curling into the Irish Sea on your right, the Wicklow Mountains folding away to the south, the city itself reduced to a cluster of grey and glass in the middle distance so small you could cover it with your thumb. The view from Two Rock Mountain, 536 metres up and only 45 minutes from O’Connell Street by car, is not what people picture when they think of Dublin. That is the whole point.

Dublin: A City Ringed by Hills

The Dublin and Wicklow Mountains, a granite batholith 400 million years old, form a natural amphitheatre around Ireland’s capital. Within an hour of the city centre, you can be standing on a summit with views across four counties, walking a coastal cliff path with the North Atlantic exploding against the rocks below, or following a river through a glacial valley that feels like Connemara somehow got lost and ended up on the east coast.

Six Walks Worth Your Boots

1. Ticknock to Two Rock Mountain (2-3 hours return, moderate): Start at Ticknock Forest car park, follow the Dublin Mountains Way waymarkers up through forestry onto open mountain. The summit (536 m) is marked by a cairn and a trig point; on a clear day you see the Mourne Mountains in Northern Ireland, the Welsh coast, and the full sweep of Dublin Bay. The Three Rock television masts on the neighbouring summit were erected in 1960 and can be seen from almost anywhere in the city, a useful orientation landmark.

2. Howth Cliff Path Loop (6 km, 2 hours, easy-moderate): Take the DART from the city centre to Howth (25 minutes, €3.50). The purple route (cliff path) hugs the coastline around the entire peninsula, past Balscadden Bay (where W.B. Yeats lived as a child), past the lighthouse at the Baily (built 1814, automated 1996), and down through Howth village to a seafood chowder at the Bloody Stream pub that tastes like victory. The path is well-maintained but has sheer drops, keep dogs on leads, and keep children within grabbing distance. Guillemots and razorbills nest on the cliffs in spring; bring binoculars.

3. Hell Fire Club and Massey’s Wood (5 km loop, 90 minutes, easy): Start at the Hell Fire Club car park on Montpelier Hill. The ruined hunting lodge at the summit (built 1725, burned shortly after) has a rich reputation for occult activity, the Hell Fire Club, an 18th-century aristocratic drinking society, met here, and the stories of black masses, sacrificed cats, and a stranger who joined a card game and dropped dead when a player noticed his cloven hooves are, depending on your scepticism, either folklore or an excellent reason to visit in daylight. The walk through Massey’s Wood, a former demesne with redwoods and a stone bridge designed by John Lanyon, is the real highlight. Silent, ancient, and less busy than Ticknock.

4. Bray to Greystones Cliff Walk (7 km, 2 hours, easy): Another DART-accessible route. The path runs along the railway line between Bray and Greystones, built by Isambard Kingdom Brunel in the 1850s, with the Irish Sea on one side and Bray Head on the other. The path was closed for years after landslides and reopened in 2023 after significant re-routing; it is now fully accessible again. Look for seals on the rocks below and peregrine falcons above. A coffee at the Happy Pear in Greystones at the end is essentially compulsory.

5. Lough Tay and the Wicklow Way (3-4 hours, moderate): Drive to the viewing point above Lough Tay, the “Guinness Lake,” so named because the dark peat water and the white sand imported by the Guinness family estate look exactly like a pint of stout. The Wicklow Way (Ireland’s oldest waymarked trail, 130 km total, established 1980) passes here; a section from Lough Tay to Roundwood via the shoulder of Djouce Mountain (725 m) takes about 3 hours and covers some of the best terrain in the range, including boardwalk over the bog, granite tors, and views of the Blessington Lakes that make you stop every five minutes.

6. Bohernabreena Reservoir Loop (8 km, 2 hours, easy): The most overlooked walk in the Dublin Mountains. The reservoir (built 1883-1887 to supply water to Dublin) is surrounded by a flat, well-maintained path that passes through woodland, wetland, and open valley. The silence, eight kilometres from Tallaght, the largest suburb in Ireland, is extraordinary. Kingfishers nest here. Herons stand motionless at the water’s edge like grey sculptures. It is the walk for a Sunday morning when you want to be outside but cannot face a summit.

Practical Sense

Dublin’s weather changes in minutes. Carry a waterproof layer even in July. The Dublin Mountains Partnership maintains the trails to a high standard, but mobile phone signal is patchy above 400 metres, download offline maps before setting out. Parking at Ticknock and the Hell Fire Club fills by 10am on weekends; arrive at 9am or use the Dublin Bus 44B to the foot of Ticknock Road. The Dublin Mountains Way (42 km total, Tallaght to Shankill) can be walked in two days with an overnight in Enniskerry if you want to commit to the full traverse. Every section is accessible by public transport at both ends, a rare and underappreciated feature of this particular patch of Irish wilderness.