4.5
(58)
408
riders
20
rides
Gravel biking around the London Borough Of Harrow offers diverse terrain across its extensive green spaces and varied landscapes. The region features numerous parks, open meadows, and woodlands, providing a mix of surfaces suitable for gravel bikes. Harrow-on-the-Hill presents elevated sections with rewarding views, while areas like Bentley Priory Nature Reserve offer woodland trails. This combination of natural features creates a compelling environment for gravel cycling.
Last updated: July 17, 2026
5.0
(5)
77
riders
48.6km
02:40
230m
230m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
19
riders
50.2km
03:13
350m
350m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.

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5.0
(1)
9
riders
23.3km
01:43
50m
50m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.3
(3)
14
riders
15.3km
00:58
60m
60m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(3)
8
riders
25.5km
01:35
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
8
riders
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
3.0
(1)
12
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.3
(6)
12
riders
36.5km
02:17
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
12
riders
21.7km
01:21
110m
110m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
50.5km
03:04
210m
210m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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One of the only places where you aren't shouted at for cycling by a jobless ranger in a multi tonne landy defender, nice path but can be quite busy
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Crossing point between Whipendall Woods / Whippy Trails and Cassiobury Park
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About 1922, the land between the River Colne and the canal was taken over by Rickmansworth Gravel Company. Building in the capital was booming and gravel was in demand. Extraction at the site began and the resulting pit became Stocker's Lake. The original Wembley stadium was built at around this time and many have since speculated on the possibility of a Wembley Connection? Dredging and gravel extraction continued until the 1940s. In 1947 Rickmansworth and Uxbridge Valley Water Company purchased Stocker's Lake (an area of 93.7 acres) for £5000 as the dredging agreement had expired. This was to protect the aquifer and pumping sources at Stocker's and Springwell. The company became Rickmansworth Water Company in 1985 and later part of Three Valleys Water Company, eventually Affinity Water, the present owners. In the 1970s Stocker’s Lake became a nature reserve and day to day management was assigned by the water company to Herts and Middlesex Wildlife Trust.
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The land on which Stocker's Lake now stands was once part of Stocker's Farm which is still there today. Records from 1427 show that the farm already existed and was owned by John Stockere or Stocker. In 1861, Stocker's House was built for the Corporation of London to house the Collector of Coal Dues on the Grand Union Canal. Stocker's House cost £850 to build and the first tenant was Mr. Charles Browton. The dues he collected were, for example, 4 shillings per ton of wine and 12 pence a ton of coal. However with the railways becoming increasingly popular it was decided to sell the house and in 1869 Lord Ebury offered £300
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At the M25 end you would be mistaken that you're entering a private property but there is a public footpath once you go around the corner
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Great cut through to avoid roads with traffic. Very popular trail
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Parkrun here every Saturday 9am, get there by 8.30am or the car park gets tricky. All other times the parking is easy 😉
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The London Borough of Harrow offers a good selection of gravel biking routes, with over 20 trails available. These routes vary in difficulty, providing options for different skill levels.
Harrow's gravel bike trails feature a diverse range of terrain. You'll encounter extensive green spaces, ancient woodlands, open meadows, and some elevated sections around Harrow-on-the-Hill. Many routes combine both paved and unpaved surfaces, making them ideal for gravel bikes.
Yes, there are several easy gravel biking routes in Harrow. About half of the available trails are classified as easy, such as the Black Jack's Mill loop from Rickmansworth, which is a 14.4-mile (23.2 km) trail through the Colne Valley. These routes are generally flatter and shorter, perfect for those new to gravel biking.
The gravel biking routes in the London Borough of Harrow are highly rated by the komoot community, with an average score of 4.8 stars from over 40 reviews. Riders often praise the varied terrain, the peaceful green spaces, and the opportunity to explore both natural beauty and historical sites.
Many of Harrow's parks and open spaces, such as Pinner Memorial Park and Headstone Manor Park, offer gentle paths suitable for family rides. For a specific route, consider easier loops that avoid significant elevation, allowing for a more relaxed experience for all ages.
While many green spaces in Harrow are dog-friendly, specific rules for dogs on cycling trails can vary by park or nature reserve. It's always best to check the local regulations for areas like Bentley Priory Nature Reserve or Stanmore Common before heading out with your furry companion.
Yes, many of the gravel bike routes in and around Harrow are designed as loops. For example, the Denham Quarry Lake – Harefield Place Lake loop from Hillingdon offers a moderate 22.5-mile (36.3 km) circular ride, allowing you to start and finish at the same point.
Harrow offers several scenic spots. Harrow-on-the-Hill provides stunning panoramic views of the London skyline, including Wembley Stadium. You can also find the London Viewpoint at Wood Farm. Additionally, areas like Old Redding Open Space feature the ornamental Gilbert's Lake and ancient woodlands.
Yes, for those seeking longer adventures, routes like the Verulamium Museum – Old Gorhambury House loop from Radlett cover over 31 miles (50 km) and explore historical sites and varied countryside north of Harrow. Another option is the Ebury Way Cycle Path – River Colne loop from Watford High Street, a 31.4-mile (50.5 km) moderate route.
Harrow is well-connected, making its trails accessible. Many routes are reachable via public transport, with various stations serving the borough. For those driving, parking is often available near major parks and trailheads, though it's advisable to check specific park websites for details on parking facilities and potential charges. The borough's location also allows connections to wider cycling networks.
The London Borough of Harrow is enjoyable for gravel biking throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer is also great, especially in the shaded woodland areas. While winter rides are possible, be prepared for potentially muddy sections, especially after rain, and shorter daylight hours.
Generally, no specific permits are required for cycling on public trails and paths within Harrow's parks and open spaces. However, for certain nature reserves or private estates that may be part of a route, it's always good practice to check their specific access rules. You can find more information about Harrow's parks and open spaces on the Harrow Council website.


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