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Routes
Bike touring routes & trails
Ireland
Leinster
Dublin

Three Rock Mountain loop from Blackrock - Wicklow Mountains National Park

Routes
Bike touring routes & trails
Ireland
Leinster
Dublin

Three Rock Mountain loop from Blackrock - Wicklow Mountains National Park

Hard

2

riders

Three Rock Mountain loop from Blackrock - Wicklow Mountains National Park

02:01

29.1km

500m

Cycling

This difficult 18.1-mile route from Blackrock is listed for touring cycling, but direct loops on Three Rock Mountain are for mountain bikes.

Last updated: February 26, 2026

Waypoints

A

Start point

Bus stop

Get Directions

1

10.5 km

Three Rock Mountain

Highlight • Summit

Three Rock Mountain is part of a group of hills in the Dublin Mountains. Towering at 1,475 feet (444 m), it has wonderful views over the surrounding landscapes. Three groups of granite rocks sit at the summit, from which the mountain takes its name.

Forestry plantations of larch, pine and spruce blanket the mountain's slopes. At the top, you'll also spot lots of masts and towers that broadcast to Dublin.

Tip by

2

24.1 km

Clonkeen Park

Highlight (Segment) • Cycleway

Clonkeen Park is a nice alternative to cycling down the N11. It's calm and flat nice greenery and river views.

Tip by

B

29.1 km

End point

Bus stop

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Way Types & Surfaces

Way Types

12.8 km

10.6 km

4.07 km

1.62 km

< 100 m

< 100 m

< 100 m

Surfaces

18.0 km

9.58 km

1.46 km

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Thursday 7 May

13°C

6°C

26 %

Additional weather tips

Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Three Rock Mountain loop from Blackrock suitable for touring bicycles?

The direct 'loop' routes around Three Rock Mountain, especially those in the Ticknock area, are primarily designed for mountain biking and are generally not suitable for traditional touring bicycles. These trails feature challenging terrain with technical sections, singletrack paths, and varied surfaces like rock, roots, and loose stones. Touring cyclists looking to explore the area from Blackrock would need to plan a route using the wider network of public roads in the foothills of the Wicklow Mountains to avoid unsuitable off-road conditions.

What is the terrain like on this route?

For touring cyclists, the terrain on the direct Three Rock Mountain loops is very challenging. It includes technical sections, singletrack, and surfaces like rock, roots, mud, and gravel, often requiring you to push your bike. While there are some tarmac sections, the overall experience is geared towards mountain biking. If you stick to public roads in the foothills of the Dublin Mountains, you'll find varied road surfaces, some very good and some rough, but generally manageable for road tires.

How long does it typically take to cycle this route?

This route is approximately 29 km (18 miles) long and, for a touring bicycle, is graded as 'difficult'. It typically takes around 2 hours to complete, but this can vary significantly depending on your fitness level and how much you need to dismount and push your bike on the more technical sections if you attempt the mountain biking trails.

What kind of views can I expect along the way?

Despite the challenging terrain, the area offers spectacular scenery. From Three Rock Mountain, you can enjoy wonderful panoramic views over Dublin City and Bay, as well as the expansive Wicklow Mountains. The landscape includes forestry plantations of larch, pine, and spruce, and further into the Wicklow Mountains, you'll find a mixture of magnificent hills, mountains, rivers, and lakes.

Are there any notable landmarks or points of interest on this route?

Yes, the primary highlight is Three Rock Mountain itself, offering stunning views. The route also passes through Clonkeen Park. If you venture onto the mountain biking trails, you'll encounter features like the 'Skyline' trail, known for its fast descents and technical sections, though these are not suitable for touring bikes.

Where can I park when starting this route from Blackrock?

Blackrock is a suburban area with various parking options, including street parking and car parks, though these may be paid. For access to the Wicklow Mountains, many cyclists park closer to the foothills or at designated trailheads like Ticknock Forest, but these are further from Blackrock. Consider public transport to Blackrock to avoid parking hassles.

How can I get to the trailhead using public transport?

Blackrock is well-served by public transport from Dublin City Centre. You can take a DART train to Blackrock station or various Dublin Bus routes that stop in Blackrock. From Blackrock, you would then need to cycle towards the foothills of the Dublin Mountains to begin your route.

Is this route dog-friendly?

While the Wicklow Mountains National Park generally allows dogs, specific rules apply. Dogs must be kept on a leash at all times to protect wildlife and livestock. Be aware that some sections, especially the technical mountain biking trails, might not be suitable for dogs due to the challenging terrain.

What is the best time of year to cycle this route?

The best time to cycle in the Dublin Mountains and Wicklow Mountains National Park is typically from late spring to early autumn (May to September). During these months, the weather is generally milder, with longer daylight hours and less chance of rain. Winter cycling can be challenging due to colder temperatures, shorter days, and potentially icy or muddy conditions on unpaved sections.

Are there any permits or fees required to cycle in the Wicklow Mountains National Park?

Generally, there are no permits or entrance fees required for cycling on public roads or designated trails within the Wicklow Mountains National Park. However, specific privately managed areas or car parks might have charges. Always check local signage for any specific regulations or fees that may apply to certain facilities or areas you plan to visit.

Is this route suitable for beginners on a touring bicycle?

No, this route is graded as 'difficult' and is not suitable for beginners on a touring bicycle, especially if attempting the direct mountain loops. The terrain is challenging and requires good fitness and bike handling skills. Beginners on touring bikes should look for easier, paved road routes within the broader Wicklow Mountains National Park area.

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