Summary
This is a trip of 19 miles, 7 furlongs and 15 locks from Hertford Union Top Lock No 1 to Stanstead Marina.
This will take 9 hours and 59 minutes which is 1 day, 2 hours and 59 minutes at 7 hours per day.
From Hertford Union Top Lock No 1 travel northeast on the Grand Union Canal (Hertford Union Canal) for 3¼ furlongs and 2 locks to Hertford Union Canal Junction, then travel north on the Lee and Stort Navigation (River Lee: commercial section) for 11 miles, ¾ furlongs and 7 locks to Waltham Town Lock No 11, then travel north on the Lee and Stort Navigation (River Lee) for 8 miles, 2¾ furlongs and 6 locks to Stanstead Marina.
Route
| Grand Union Canal (Hertford Union Canal) | |||
| From Hertford Union Top Lock No 1 (Also known as Old Ford Upper Lock, Homerton Footpath Lock) to: | |||
| Hertford Union Canal Junction Junction of Hertford Union Canal and River Lee | 3¼ furlongs, 2 locks | ||
| Lee and Stort Navigation (River Lee: commercial section) | |||
| From Hertford Union Canal Junction (Junction of Hertford Union Canal and River Lee) to: | |||
| Tottenham Lock No 17 [see navigational note 1 below] BW key needed to operate lock | 4 miles, ¾ furlongs, 0 locks | ||
| Enfield Lock No 13 BW key needed to operate the gates / windlass for the paddles | 5 miles, 4½ furlongs, 4 locks | ||
| Waltham Town Lock No 11 | 1 mile, 3½ furlongs, 3 locks | ||
| Lee and Stort Navigation (River Lee) | |||
| From Waltham Town Lock No 11 to: | |||
| Rye House Junction Junction of Rivers Stort and Lee | 6 miles, 5½ furlongs, 6 locks | ||
| Rye House Bridge No 58 With Pipe Bridge alongside | 4 furlongs, 0 locks | ||
| Stanstead Marina Also known as Lee Valley Marina Stanstead Abbots | 1 mile, 1¼ furlongs, 0 locks | ||
Totals
Total distance is 19 miles, 7 furlongs and 15 locks (not counting Hertford Union Top Lock No 1) Today’s travel includes at least 1 small aqueduct or underbridge.
This is made up of 3¼ furlongs of broad canals; 11 miles, ¾ furlongs of commercial waterways; 8 miles, 2¾ furlongs of small rivers; 8 broad locks; 7 large locks.
This will take 9 hours, 59 minutes which is 1 day, 2 hours and 59 minutes at 7 hours per day. For initial calculation purposes (before adjusting for such things as overnight stops) this is taken as 1 day of 9 hours and 59 minutes.
The trip can be done in under one day, so no overnight stopping places have been calculated.

