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Black Jack's Mill – Canal Towpath and Stone Bridge loop from Harefield

Routes

Bike touring routes & trails

Black Jack's Mill – Canal Towpath and Stone Bridge loop from Harefield

Easy

5.0

(3)

riders

Black Jack's Mill – Canal Towpath and Stone Bridge loop from Harefield

01:59

23.9km

50m

Cycling

Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 18, 2026

Tips

Includes a segment that goes up or down a series of steps

You may need to carry your bike.

After 11.5 km for 10 m

Waypoints

Start point

Bus stop

Get Directions

952 m

Black Jack's Mill

Highlight • Bridge

A nice place to stop for a snack.

Tip by

2.84 km

Canal Towpath and Stone Bridge

Highlight (Segment) • Bridge

Nice route but very narrow and have to watch out for stones or bricks poking out of the ground

Tip by

10.9 km

Junction of the Slough Arm and Grand Union Canal

Highlight • Bridge

This is where the Slough Spur of the Grand Union Canal joins the main canal. The main canal runs from London to Rickmansworth and beyond. Very beautiful, especially on this sunset!

Tip by

17.0 km

River Colne and Grand Union Canal

Highlight • Cycleway

Very beautiful spot. Worth visiting on a paddleboard, I suppose

Tip by

18.7 km

Grand Union Canal & Pine Valley Trail Junction

Highlight • Trail

The Grand Union Canal is a cyclist's dream. Running from London to Birmingham, it's always there to help out if you get lost or need a flat route going north …

Tip by

20.8 km

Widewater Lock No. 86 and Moorhall Road Bridge No. 180

Highlight • Bridge

23.0 km

Weir at Towpath Bridge No. 177B

Highlight • River

Great looking weir, good to see something different 👍

Tip by

23.5 km

Coy Carp Pub and Kayak Spot on the Grand Union Canal

Highlight • Bridge

This is at the bottom of the cheeky climb that heads towards Harefield. The road follows a chicane over a narrow bridge that is controlled by traffic lights so make …

Tip by

23.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

11.6 km

10.2 km

1.53 km

451 m

< 100 m

Surfaces

12.8 km

8.92 km

1.33 km

717 m

131 m

Elevation

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

Weather

Saturday 23 May

31°C

13°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Black Jack's Mill – Canal Towpath and Stone Bridge loop from Harefield

Black Jack's Mill

Canal Towpath and Stone Bridge

Junction of the Slough Arm and Grand Union Canal

River Colne and Grand Union Canal

Grand Union Canal & Pine Valley Trail Junction

Widewater Lock No. 86 and Moorhall Road Bridge No. 180

Weir at Towpath Bridge No. 177B

Coy Carp Pub and Kayak Spot on the Grand Union Canal

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