The route for this walk was taken from a guide book, and is quoted as being approx 3.25 miles (5.23 Km). Most people will arrive at the car park in the Heybridge Basin. From there it's a short walk up onto the canal bank.
We did not quite start where suggested because it was imperative to have a cup of tea and a scone at the tea room (all good walks should start that way). We began our walk from the lock entrance. Heybridge Lock was built as the sea terminus for the Chelmer and Blackwater Navigation. Go the wrong way at the Lock and you are in the estuary! We walked alongside the track on the right side of the canal, which is fairly straight, and goes towards Chelmsford. At the second bridge we crossed over the canal and went short way before turning left down Hall Road. After a few hundred yards there is a turn on the right onto the path alongside the Blackwater. The view to your right takes in Maldon across the water and on the left there is an old quarry which has now been formed into a lake. The path winds a bit but generally continues round to the left until you meet up at the Heybridge Lock again.
It was a pleasant walk on a sunny spring day. Being a canal and coastal walk the terrain was fairly level for most of the way. You may think that there was time to visit the tea shop again (not a bad idea) but you would be wrong this time - picnic lunch instead!