Circular Walk — Canal and Reservoirs
Approximately 4.5 miles.
Starting and ending in Wilstone
Using Foot paths with styles crossing arable fields.
Canal tow paths with steps and minor roads.
Leave Wilstone down Rose Lane taking the footpath to Dixon’s Gap, the footpath starts at the end of Rose Lane and opens out on what are ancient fields and tracks, note the double hedge rows. Follow the path around the periphery of the field to the second style which takes you across centre of a large arable field to final style where you turn on to the Aylesbury Arm of the Grand Union Canal. (To avoid these styles and the fields take the track to east of the Village Hall leading to the canal, turn Right and follow the tow path.) The Canal is popular spot for Fishing and contains a wide variety of species including large Common and Mirror Carp up to around 20lbs. If you are quiet you may catch site of one swimming just below the surface. They also occasionally leap out of the water with large splash! The Dixon’s Gap pound is well protected from the elements by high hedges on both sides. These provide cover for many birds, you maybe lucky and catch site of Kingfisher, a flash of irridescent blue in the sun light. Also listen out for the laughing call of the Green Woodpecker. Moving on, as you pass under the road bridge and up on the next pound you may disturb a Heron fishing also look out for them on the adjacent fields. This is a very open stretch of the canal as you wander along listen the calls of the Lapwing a high pitched “pee wit”. During the summer and autumn there are often large flocks on the fields to your right which are often disturbed by Hot Air Balloons when they all take to the air calling loudly.

As you move out to the next pound with its very attractive lock keepers house you may hear the “mew mew” call of the Kestrel from the trees and hedge rows to your left also Magpies can be seen, often feeding on the tow path. If you very lucky you may even catch site of a barn owl. Like a giant white moth flitting across the fields. The tree lined next pound is very attractive, as you approach the far lock if the water is calm you may see some torpedo shaped fish up to a foot long just below the surface these are Chub more usually at home in shallow fast flowing Rivers. Moving up to final pound you can take seat for a while and look out over fields towards Marsworth. You leave the Aylesbury Arm with a Double Lock and join the Main Arm of the Grand Union. At this point the Canal is wide and and provide moorings for many long boats. If you need to, you can take some refreshments here, but before you do that there is special sight to see, as you approach the road bridge take a good look at the Canal and you will see a large shoal of big carp. Many people feed them bread or dog mixer biscuit and if you were very patient I am sure they would eat from your hand.
Pressing on, you have to cross the main Road and continue to follow the tow path until it splits, take the right fork up on the corner bank of the Startops End Reservoir (built in 1815-17 and then bear left keeping the canal to to left and Marsworth Reservoir to your right. Early in the year the year the water levels are high, these reservoirs were built to supply the canal with water. Each time a boat moves through one of main arm locks it takes 56,000 gallons (250,000 litres) of water to refill it! The reservoir is home for many water birds mainly ducks geese and swans, it also contains very large fish, Carp and Pike. Moving on, take the left fork with the canal to your left and Marsworth Reservoir (built in 1806)on your right. This is very attractive part of the walk the quiet reed lined Reservoir with many water fowl such as Great Crested Grebe and on the other side the busy canal. Boats moving through locks seem to have a special fascination and many people stop to watch the activities. The pounds are short and wide as you approach up the summit of the Grand Union at around 390 feet above sea level.
You
reach a footbridge with a boathouse to your left, cross the bridge and
turn sharp left and take the path leading back under the bridge you are
now on the Wendover Arm, this is very quiet stretch with few boats. The
arm was built 1793 and follows the 390 foot.contour line from Wendover
suppling water from the Wendover Hills to the Tring summit. You will pass on your right the site of one of early pumping station that
lifted water from Masrworth reservoir to the summit. This pump house only ran from 1810 to 1817 when it was replaced by Tringford Pumping station which you come across shortly. The path winds
around to Gamnel Bridge at New Mill where again you have to cross a busy
road to rejoin the towpath on the right of the canal. Heygates Flour mill
is on your left, the site of a what was once a boat yard,. Further on you
will see on the left the small Tring feeder joining the canal. Apart from
this feeder all other water has to be pumped up into the canal. The canal
now narrows and is very shallow as it flows through open fields towards
Little Tring. But first you reach Tringford Pumping Station which pumps
water from all four reservoirs into the arm to feed the summit of the Main Canal. The original
Pump of 1818 was a steam driven beam pump and was replaced by a diesel electric pump in 1913. Just
beyond this pumping station the there is a stop lock. For the next few
miles the canal is dry but work is in progress to reopen it and a new bridge
has been built. Leave the Canal to your right and join the road
at Little Tring. Walk up the hill for 100 yards or so and you will see
track to your left which leads to the tow path of the “Dry Canal”. This
section part of the Canal through to Drayton Beachamp leaked and was closed
in 1904. The water is diverted into an 18 inch pipe laid in the bed of the canal.

You are now high up and to your right lies Wilstone Green and Village and ahead Wilstone Reservoir. The path come to junction originally the site of a swing bridge across the canal, turn right and drop down towards the reservoir at bottom of the slope turn right and follow the track turning left on to the East Bank of the reservoir. As you look out over this large expanse of water you will see that reservoir appears to be divided into three section and in fact the the reservoir was built as 3 separate reservoirs between 1802 and 1839. The original reservoir, now the SW corner had its own pumping station (1802-36) at the 'WhiteHouse' high above reservoir on the Wendover Arm. The ruins can still be seen.
Wilstone Reservoir is a very well known
spot for both Fishing and bird
watching , it attracts from time to time many of the rarer species, Marsh
Harrier, Osprey Bittern and even Oyster Catchers are not unknown. Wilstone
was built as three separate reservoirs and if water is low you may be to
make them out. Follow the bank around until you reach the steps and you
are nearly back to Wilstone. Turn right and take the path until you reach
the turning for Wilstone or carry on past farm shop and at the corner take
the path down through the farm joining New Road.

I hope you have enjoyed your walk.
Visit the site again and take another Wilstone walk.
Wilstonian Feb 2002