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Wendover Arm, Grand Union Canal

Accessible to all craft kept on the connected inland waterways

Silver Propeller Challenge



Visit the Wendover Arm on the Grand Union Canal by boat or canoe.

Its 1 ½ mile long arm has been chosen as a Silver Propeller Location to support the restoration and to encourage boats up the arm. A photo of your boat at the end of the Wendover Arm will be a good proof of your visit.

Complete our challenge by visiting 20 locations from our list, you will receive our exclusive plaque and goody bag.


About the Wendover Arm of the Grand Union Canal

The Wendover Arm leaves the Tring summit of the Grand Union Canal at the top of Marsworth Locks.  The original plan for the Grand Junction Canal did not include any branches and the Wendover Arm was part of a second enabling Act in 1794.  During 1799, the opening of the navigable feeder to the springs near Wendover took place.  However, the insufficient supply of water soon became clear.  As a result, four reservoirs were constructed between 1802 and 1815; Wilstone was followed by Marsworth, Tringford and finally Startops End.

Originally planned just as a water-supply feed, the 6 ¾ mile canal was used to transport coal, timber, straw and manure.  Straw was shipped to London for horse bedding, with horse manure from the bus depots of London transported in the opposite direction for the local farms.  Unfortunately, sections of the Wendover Arm leaked and much of it was re-puddled within ten years of its construction. Later on, a stop lock was built just after the pumping station at Tringford.  During 1904, the canal beyond the lock was closed and used purely to feed water with a pipe laid along the bed.  Despite this, the canal to Tringford remained navigable, serving Heygates Mill and Bushell Brothers boatyard.

Wendover Arm Trust was formed in 1989 and aims to restore the full canal arm to navigation.  Phase 1 of the works, including works to the existing navigable canal; reinstatement of the road bridge beyond Tringford stop lock and construction of an interim terminus basin at Little Tring Farm were completed in 2005.

Photo: Wendover Arm on the Grand Union Canal  –  by Tim Lewis.

Notes for Visitors


Postcode: HP23 4NR

What3words /// savers.forklift.expensive


Boat Dimensions

The maximum size of boat that can navigate the Wendover Arm is:-

  • Length: 72′ (21.95 m)
  • Beam: 7′ (2.13 m)
  • Draught: 3′ 4”(1.03 m)
  • Height: 7′ 7” (2.33 m)

Full length narrow boats can wind at the current terminus of navigation.

Watch out for the underwater ledge beside the bakery buildings about halfway along the arm, it is marked with yellow signs on the towpath.

Canoeing, hire boats and trip boats

Canoeing is encouraged on the Wendover Arm with a Canal & River Trust licence or British Canoeing membership.

The day boats Albert & Victoria can be hired from Cowroast Marina.

Challenge Location

Wendover Arm

Current limit of navigation at Little Tring

Discover more nearby

Related activities

Waterway underfunding

Hundreds of miles of waterways – along with their unique heritage and habitats – are currently starved of funding and rely on constant lobbying by us to safeguard their future.

Sustainable Boating

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You can help Save Waterways Heritage.

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