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Routes
Bike touring routes & trails
United Kingdom
England
East Of England
Hertfordshire

Black Jack's Mill – Cassiobury Park Bridge No. 157 loop from Watford Junction

Routes
Bike touring routes & trails
United Kingdom
England
East Of England
Hertfordshire

Black Jack's Mill – Cassiobury Park Bridge No. 157 loop from Watford Junction

Moderate

5.0

(6)

36

riders

Black Jack's Mill – Cassiobury Park Bridge No. 157 loop from Watford Junction

02:37

34.2km

100m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 17, 2026

Tips

Cycling is not permitted along parts of this route

After 0 m for 232 m

After 34.0 km for 232 m

Waypoints

A

Start point

Train Station

Get Directions

6.87 km

Broadacres Lake

Lake

2

9.33 km

Stocker's Lock and Stone Bridge

Highlight • Structure

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 …

Tip by

3

11.2 km

4

12.9 km

Great looking weir, good to see something different 👍

Tip by

5

17.1 km

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

7

21.0 km

Black Jack's Mill

Highlight • Bridge

A nice place to stop for a snack.

Tip by

8

26.3 km

Batchworth Lock No. 81

Highlight • Rest Area

Batchworth Lock No 81 is a minor lock on the Grand Union Canal. The Grand Union Canal Walk passes here.

Tip by

9

31.2 km

Cassiobury Park Bridge No. 157

Highlight • Bridge

Crossing point between Whipendall Woods / Whippy Trails and Cassiobury Park

Tip by

B

34.2 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

13.9 km

11.4 km

2.95 km

2.76 km

2.57 km

637 m

< 100 m

Surfaces

11.5 km

8.88 km

7.34 km

4.10 km

2.29 km

< 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

Sunday 12 July

27°C

14°C

0 %

Additional weather tips

Max wind speed: 26.0 km/h

to get more detailed weather forecasts along your route

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

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