The Aylesbury Arm is a ten kilometre long arm of the Grand Union Canal. It was opened in 1814 to transport goods to and from Aylesbury to the rest of the canal network. The terminus basin of the canal is in central Aylesbury. This basin is now the focus of a great deal of redevelopment, like all canals the trade is now leisure cruisers.
The other end of the canal is at Marsworth where it joins the Grand Union. The below photo shws the arm just beyond the junction. Ten kilometres more and you can shop at Aylesbury's Waitrose!