Prince Philip Lock, filling with water
Introduction
The photograph on this page of Prince Philip Lock, filling with water by Christine Johnstone as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Christine Johnstone Taken: 12 Jul 2017
The water is welling up from underwater sluices. The wet dock [floating harbour] is kept at the level of high tide, so when the tide has fallen, boats have to lock up into it.