4.6
(1629)
14,634
hikers
290
hikes
Bus station hiking trails around Harlaw Reservoir are situated within the Pentland Hills Regional Park, offering a blend of open water, mixed woodlands, and rolling hills. The landscape features views across the reservoir to the boggy northern summits of the Pentland Hills. The area includes Lower Carboniferous sedimentary rocks, providing geological interest. This region provides a network of trails accessible via public transport.
Last updated: August 22, 2026
5.0
(5)
25
hikers
14.0km
03:42
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
25
hikers
4.17km
01:04
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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17
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
16
hikers
4.96km
01:20
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
10
hikers
5.07km
01:21
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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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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Nicer alternative to walking between two villages
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Free entry. Donation box at the car park. Beautiful spot and view of Pentland Hills
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Pretty steep uphill from Threipmuir to Harlaw. Easy enough to walk up/down.
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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 tracks at Harlaw are all gravel but up to this point is fine for a road bike.
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There are over 280 hiking trails around Harlaw Reservoir that are accessible from bus stations. These routes cater to various fitness levels, with 112 easy, 158 moderate, and 19 difficult options.
The terrain around Harlaw Reservoir is diverse, ranging from flat, easily accessible paths around the reservoirs to more challenging ascents into the rolling Pentland Hills. You'll encounter mixed woodlands, open water views, and sometimes boggy sections on higher ground. The area also features interesting geological formations from the Lower Carboniferous period.
Yes, there are many easy routes suitable for families. For example, the Linfoy Loop loop from Heriot-Watt University is an easy 4.17 km hike with minimal elevation gain. Another gentle option is the Water of Leith Walkway loop from Currie, which is 4.96 km long and also rated easy.
Yes, the area around Harlaw Reservoir is very popular for dog walking. Many trails are dog-friendly, but please ensure your dog is kept under control, especially near livestock or wildlife, and always clean up after them. Some routes may require dogs to be on a lead.
You can enjoy picturesque views of Harlaw Reservoir itself, as well as the nearby Threipmuir Reservoir. Many trails offer expansive vistas of the Pentland Hills, including peaks like Black Hill, Turnhouse, and West Kip. The area also boasts a local nature reserve and a wildlife garden, showcasing the region's biodiversity.
Absolutely. Many of the trails are designed as loops, making them convenient for bus users. A popular moderate circular route is the Harlaw Reservoir – Threipmuir Reservoir loop from Balerno, which covers 13.7 km. For an easier option, consider the Water of Leith Walkway loop from Balerno.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 1,300 reviews. Hikers often praise the diverse landscapes, the well-maintained paths, and the stunning views across the reservoirs and into the Pentland Hills. The convenience of accessing these trails via public transport is also a significant highlight.
Yes, for a moderate challenge, the Harlaw Reservoir – Threipmuir Reservoir loop from Balerno is a great choice. It's a 13.7 km route with over 128 meters of elevation gain, offering beautiful reservoir views. Another moderate option is the Woodhall–Blinkbonny Link – Water of Leith Walkway loop from Heriot-Watt University, which is 8.4 km long.
The trails are enjoyable year-round. Spring brings blooming flora, summer offers longer daylight hours, and autumn showcases vibrant foliage. Winter can be beautiful with snow, but some higher paths might be more challenging due to ice or mud. Always check weather conditions before heading out.
The Harlaw House visitor centre, located near Harlaw Reservoir, serves as a convenient starting point for many walks and offers amenities like toilets. Depending on your specific bus stop, you might find local cafes or shops in nearby villages like Balerno or Currie.


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