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Routes
Road cycling routes
Ireland
Leinster

Dún Laoghaire–Rathdown

The best road cycling routes around Dún Laoghaire–Rathdown

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.

Best road cycling routes around Dún Laoghaire–Rathdown

  • The most popular road cycling route is Coliemore…

Last updated: May 18, 2026

4.7

(3)

8

riders

#1.

Coliemore Harbour loop from Dundrum

29.3km

01:21

290m

290m

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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Easy

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy
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Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Popular around Dún Laoghaire–Rathdown

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Hiking around Dún Laoghaire–Rathdown

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Running Collection by

Jen & Sim Benson

Tips from the Community

Wanderfuchs
December 23, 2025, Samuel Beckett Bridge

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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Line
November 25, 2025, Samuel Beckett Bridge

The bridge is a good starting point for exploring the sights along the banks of the Liffey.

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Impressive bridge

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Francis
May 30, 2025, Howth Market

Top

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Christoph
May 27, 2025, Howth Market

typical delicacies

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This road has fantastic scenery which is very open with views for miles.

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the northern end of Military Road, once you have passed the first climb a great view opens, don't get distracted too much

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r2d2
April 15, 2025, Johnnie Fox's Pub

Avoid on Saturdays as lots of people drive to/from Dublin. Sundays are way quieter.

1

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Frequently Asked Questions

How many road cycling routes are available in Dún Laoghaire–Rathdown?

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.

What types of terrain can I expect on road cycling routes in Dún Laoghaire–Rathdown?

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.

Are there any easy or family-friendly road cycling routes in Dún Laoghaire–Rathdown?

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.

Where can I find challenging road cycling routes with significant elevation?

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.

What scenic landmarks or natural features can I see along the road cycling routes?

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.

Are there any road cycling routes that include stops at cafes or pubs?

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.

What is the best time of year to go road cycling in Dún Laoghaire–Rathdown?

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.

Can I find circular road cycling routes in the area?

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.

What do other road cyclists enjoy most about cycling in Dún Laoghaire–Rathdown?

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.

Are there any moderate-difficulty road cycling routes that offer a good balance of distance and elevation?

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.

How accessible are the road cycling routes by public transport?

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.

Where can I find parking for road cycling routes in Dún Laoghaire–Rathdown?

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.

Most popular routes around Dún Laoghaire–Rathdown

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