4.6
(525)
24,486
riders
157
rides
Road cycling around Dún Laoghaire–Rathdown offers a diverse landscape, characterized by its extensive coastline along Dublin Bay and the Irish Sea, and its proximity to the Dublin Mountains. The region features a network of on-road and dedicated cycle paths, providing varied terrain from flat coastal routes to more challenging ascents into the hills. Green spaces and parks are integrated into many routes, offering low-traffic options.
Last updated: May 18, 2026
4.7
(3)
8
riders
29.3km
01:21
290m
290m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4.3
(15)
735
riders
47.9km
01:55
110m
110m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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5.0
(21)
617
riders
85.1km
04:15
1,320m
1,320m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.7
(3)
390
riders
133km
06:31
1,990m
1,990m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
412
riders
83.5km
03:28
350m
350m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(4)
421
riders
101km
04:50
1,340m
1,340m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(6)
237
riders
27.5km
01:16
310m
310m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
218
riders
88.7km
03:59
700m
700m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
3.8
(4)
211
riders
84.6km
03:41
680m
680m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(6)
297
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Dún Laoghaire–Rathdown
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Hiking around Dún Laoghaire–Rathdown
The bridge was installed in 2003 and can swivel 90 degrees. Its design is reminiscent of a harp. It was named after the Irish writer Samuel Beckett.
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The bridge is a good starting point for exploring the sights along the banks of the Liffey.
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This road has fantastic scenery which is very open with views for miles.
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Avoid on Saturdays as lots of people drive to/from Dublin. Sundays are way quieter.
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Dún Laoghaire–Rathdown offers a wide selection of road cycling routes, with over 160 tours available on komoot. These routes cater to various skill levels, from easy coastal spins to challenging mountain ascents.
The region provides diverse terrain for road cyclists. You'll find extensive coastal paths offering flat sections with stunning sea views, as well as routes that climb into the foothills of the Dublin Mountains, providing significant elevation gains and panoramic vistas. Many routes also incorporate dedicated cycle paths through green spaces and parks.
Yes, Dún Laoghaire–Rathdown has numerous easy routes suitable for a relaxed ride or families. For instance, the Seapoint Beach – Samuel Beckett Bridge loop from Seapoint is an easy 47.9 km path that follows the coastline, offering flat sections ideal for steady riding. The region's commitment to 'Active Travel' means many routes utilize dedicated cycle paths and greenways.
For more experienced cyclists seeking elevation, routes venturing towards the Dublin Mountains offer demanding climbs. A challenging option is the Killakee Viewpoint – Sally Gap loop from Sydney Parade, an 84.9 km trail with over 1300 meters of ascent. Another demanding route is the Killakee Viewpoint – Sally Gap loop from Booterstown, which covers 132.9 km with nearly 2000 meters of climbing.
Many routes offer breathtaking scenery and pass by notable landmarks. You can enjoy coastal views along the Dublin Bay Linear Route, or explore areas near the Dublin Mountains. Highlights include Killiney Hill and the Obelisk, offering sweeping views over Killiney Bay, and the historic Two Rock Mountain (Fairy Castle). Coastal routes also feature Martello Towers and picturesque harbor towns like Dún Laoghaire and Dalkey.
Yes, several routes are designed to pass by or near places where you can refuel. For example, the Scalp Road, Barnaslingan – OH SO Café loop from Booterstown is a moderate 64.9 km route that includes a café stop. You might also find routes that pass near popular spots like Johnnie Fox's Pub, known for its traditional Irish atmosphere.
Road cycling in Dún Laoghaire–Rathdown is enjoyable throughout much of the year, though spring and summer (April to September) generally offer the most pleasant weather conditions with longer daylight hours. The coastal routes can be particularly refreshing during these months. Autumn can also be beautiful with changing foliage in the park and mountain areas, but be prepared for cooler temperatures and potentially more rain.
Yes, many of the road cycling routes in Dún Laoghaire–Rathdown are designed as loops, allowing you to start and finish at the same point. Examples include the Coliemore Harbour loop from Dundrum, an 29.3 km easy route, and the moderate Seapoint Beach – Sandymount Beach loop from Salthill and Monkstown, covering 83.5 km.
The road cycling routes in Dún Laoghaire–Rathdown are highly rated by the komoot community, with an average score of 4.5 stars from over 100 reviews. Cyclists often praise the stunning coastal views, the variety of terrain from flat paths to challenging climbs, and the well-maintained dedicated cycle routes and greenways that make for an enjoyable experience.
Absolutely. For a moderate challenge, consider the Seapoint Beach – Killiney Beach loop from Blackrock, which is 88.7 km long with nearly 700 meters of elevation gain. Another option is the Seapoint Beach – Greystones Beach loop from Seapoint, a 84.7 km route with similar elevation, offering a great workout with scenic rewards.
Dún Laoghaire–Rathdown is well-served by public transport, including the DART (Dublin Area Rapid Transit) line, which runs along the coast and connects many towns and villages. This makes it convenient to access various starting points for coastal routes. Additionally, bus services provide access to areas further inland, including those closer to the Dublin Mountains.
Many towns and villages along the coast, such as Dún Laoghaire, Dalkey, and Sandycove, offer public parking facilities that can serve as convenient starting points for coastal routes. For routes venturing inland towards the Dublin Mountains, parking may be available near trailheads or in designated car parks within parks like Marlay Park. It's always advisable to check local parking regulations and availability before your ride.


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