A circular walk of approx 6 miles starting from New Bradwell (overflow development for Wolverton in the 19th Century as more people were needed  to be housed for the railway), we will  find a way to the Grand Union Canal and walk on the tow path till the limit of the county: the famous Iron Trunk Aqueduct over the Great Ouse. We will then go to the river's level and follow its path back towards New Bradwell.