Summary
This is a trip of 5 miles, ¾ furlongs and 6 locks from Harefield Marina to Grand Junction Canal – Colne Junction travelling north on the Grand Union Canal (Grand Junction Canal – Main Line – Gayton to Brentford).
This will take 3 hours and 4 minutes.
Route
| Grand Union Canal (Grand Junction Canal – Main Line – Gayton to Brentford) | |||
| From Harefield Marina (Musk Marine Sales. Braunston 79 miles) to: | |||
| The Bear On The Barge PH | 1¼ furlongs, 0 locks | ||
| Troy Junction Towpath Bridge No 177A Junction with the private Troy Branch | 1 mile, 3½ furlongs, 2 locks | ||
| The Coy Carp PH | 1¾ furlongs, 0 locks | ||
| Copper Mill Lock Weir Exit [see navigational note 1 below] No Access! | ¼ furlongs, 0 locks | ||
| Hillingdon Narrowboats Association | 1 furlong, 1 lock | ||
| Springwell Farm Basin Bridge No 176DD roves over the entrance.. Also known as Woodhall & Heward Basin | 4½ furlongs, 0 locks | ||
| Frogmoor Wharf Tesco supermarket with “Customer Moorings” and “Strictly No Overnight Mooring”!<BR>14 day moorings on the towpath side | 1 mile, 6¼ furlongs, 2 locks | ||
| Batchworth Visitor Moorings 14 day moorings | ½ furlongs, 0 locks | ||
| Batchworth Junction Junction with Grand Union (Rickmansworth Branch). Rickmansworth Town Centre, half a mile north.. Also known as Rickmansworth, Batchworth Lock Canal Centre | ¾ furlongs, 0 locks | ||
| Grand Junction Canal – Colne Junction Junction of the Grand Junction Canal with the River Colne | 4¾ furlongs, 1 lock | ||
Totals
Total distance is 5 miles, ¾ furlongs and 6 locks.
This is made up of 5 miles, ¾ furlongs of broad canals; 6 broad locks.
This will take 3 hours and 4 minutes.

