Hidden waterways: Britain's lost canals
11 July 2014 Last updated at 10:35 BST
At the height of the Industrial Revolution, thousands of miles of canals were built to transport goods and raw materials around the country.
They were the envy of the world and helped to establish Britain as an industrial powerhouse.
But after years of neglect, many are no longer useable.
Now the Canal and River Trust is campaigning to restore the country's lost waterways.
John Maguire reports.