Colin says: The dredger which is responsible for keeping Walney Channel clear returing to the channel after having dumped it's load out at sea. Note how high it is in the water when it's empty and compare it with a the picture of the same dredger a few hours later on it's way back out to sea with a full load.
(To save this picture as Windows Wallpaper - right click it -
then select "Set as Background") (or click the above image to see the full sized version)