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Running Trails
United Kingdom
Scotland
Lothian
Edinburgh

Harlaw Reservoir

The best running trails around Harlaw Reservoir

4.5

(150)

11,443

runners

427

runs

Jogging around Harlaw Reservoir offers a variety of routes set against the backdrop of the Pentland Hills. The terrain features interconnected reservoirs, wooded areas, and open paths, providing diverse running experiences. Many trails offer flatter options around the reservoir edges, while others include more significant elevation changes as they extend into the surrounding hills. The area is characterized by its natural features and well-maintained trails suitable for various fitness levels.

Best jogging routes around Harlaw Reservoir

  • The most popular jogging…

Last updated: May 9, 2026

4.8

(5)

200

runners

#1.

Pentland Hills Access Road – Threipmuir Reservoir loop from Lennox Tower

9.38km

01:07

170m

170m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Popular around Harlaw Reservoir

Hiking around Harlaw Reservoir

Road Cycling Routes around Harlaw Reservoir

MTB Trails around Harlaw Reservoir

Cycling around Harlaw Reservoir

Gravel biking around Harlaw Reservoir

Tips from the Community

Jamie
August 30, 2025, Moor Access Path Climb, Pentland Hills

Great descent on a gravel bike, smooth but with some little drops from the occasional step. Very fun!

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smooth gravel, good for gravel rides

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Harlaw Reservoir is a popular spot for outdoor activities including walking, fishing, and wildlife watching. One of the highlights is a small embankment on the far side of the reservoir which offers stunning views of Threipmuir Reservoir. On weekends visitors you can get your hands on some homemade crepes from a local van parked near the Harlaw House Visitor Centre.

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Often busy with dog-walkers at peak times

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Pretty steep uphill from Threipmuir to Harlaw. Easy enough to walk up/down.

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Threipmuir Reservoir (west) & Harlaw Reservoir (east) where built in the mid-1800s to increase the water supply for the Edinburgh area. Both have great lakeside trails for a flatter run in the Pentlands.

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51m
July 12, 2023, Harlaw Reservoir

Harlaw Reservoir was constructed between 1843 and 1848, at the same time as the larger Threipmuir Reservoir upstream. It's a simple gravity earth dam construction that adds to the volume of water available for Edinburgh.

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The best place to start any pentlands ride!

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Frequently Asked Questions

What kind of terrain can I expect on the running trails around Harlaw Reservoir?

The running trails around Harlaw Reservoir offer a varied terrain. You'll find a mix of accessible, paved paths, especially around the reservoir edges, as well as sections that may require more sure-footedness. Routes often combine lakeside trails with peaceful runs through wooded areas and open paths, providing diverse experiences.

Are there running routes for different fitness levels at Harlaw Reservoir?

Yes, Harlaw Reservoir caters to all fitness levels. You can find easy strolls and flatter options around the reservoir edges, as well as more challenging runs with significant elevation changes as routes extend into the surrounding Pentland Hills. For example, the Bavelaw Castle Drive – Maiden's Cleugh loop is a difficult 10.3-mile path with considerable elevation, while the Threipmuir Reservoir loop is a moderate 3.5-mile trail.

What natural features or viewpoints can I discover while running near Harlaw Reservoir?

While running, you'll be treated to stunning views across Harlaw Reservoir towards the Pentland Hills, with peaks like Black Hill, Turnhouse, and West Kip visible. The area features interconnected reservoirs, peaceful wooded sections, and the Harlaw wildlife garden. You might also notice interesting Lower Carboniferous sedimentary rocks and, if you're observant, fossilized plant spores on the eastern shore.

Is there parking available for runners at Harlaw Reservoir?

Yes, there is a small visitor centre located near the dam, which serves as a convenient starting point and typically offers parking facilities for those exploring the area. It's a popular spot for runners, dog walkers, and cyclists.

When is the best time of year to go running around Harlaw Reservoir?

Harlaw Reservoir is a great destination for running year-round. The diverse landscapes and well-maintained trails make it enjoyable in various seasons. However, for the most pleasant conditions, spring and autumn often offer mild temperatures and beautiful scenery. Always check local weather forecasts, especially during winter, as some sections might be more challenging.

Can I bring my dog on the running trails at Harlaw Reservoir?

Yes, the trails around Harlaw Reservoir are very popular with dog walkers and runners. It's generally a dog-friendly area, but always ensure your dog is under control, especially around wildlife and other visitors, and adhere to any local signage regarding leash requirements or protected areas.

Are there any cafes or facilities near the running routes?

A small visitor centre is situated near the dam at Harlaw Reservoir, which can provide basic facilities. For more extensive options like cafes or pubs, you would likely need to venture a short distance into nearby communities, as the immediate area around the reservoir is primarily natural parkland.

How many running routes are available around Harlaw Reservoir?

Komoot features over 450 running routes around Harlaw Reservoir, offering a wide variety of options for different distances and difficulty levels. This includes 47 easy routes, 276 moderate routes, and 127 difficult routes, ensuring there's something for every runner.

What do other runners enjoy the most about jogging in Harlaw Reservoir?

The area is highly rated by the komoot community, with an average score of 4.5 stars from over 180 reviews. Runners often praise the stunning views of the Pentland Hills, the variety of terrain from lakeside paths to wooded sections, and the well-maintained trails that cater to different fitness levels. The interconnected reservoirs also allow for extended and scenic runs.

Are there any longer, more challenging running routes for experienced runners?

Absolutely. For experienced runners seeking a challenge, routes like the Bavelaw Castle Drive loop from Lennox Tower offer a difficult 7.8-mile (12.6 km) path with significant elevation gain. Another demanding option is the Bavelaw Castle Drive – Maiden's Cleugh loop, which is 10.3 miles (16.7 km) long and features substantial climbs through the wider Pentland Hills landscape.

Can I find circular running routes around Harlaw Reservoir?

Yes, many of the running routes around Harlaw Reservoir are circular, allowing you to start and finish at the same point. A popular example is the Pentland Hills Access Road – Threipmuir Reservoir loop, which is a 5.9-mile (9.5 km) circular route offering views across both Harlaw and Threipmuir Reservoirs.

Are there any running routes that connect Harlaw Reservoir with other reservoirs?

Yes, Harlaw Reservoir is closely linked with Threipmuir Reservoir upstream, and many routes connect the two. For instance, the Pentland Hills Access Road – Threipmuir Reservoir loop is a popular option that encompasses both bodies of water, providing extended and scenic running opportunities.

Most popular routes around Harlaw Reservoir

Hiking around Harlaw Reservoir

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