Sheson, I finally found the problem after doing as you suggested and checking the log for xlodgen. It was only generating LOD for -2,-4 to 7,6. These cells are only just off the coast, hence the screenshot. Going back into the world in CK and toggling water off showed that the textures I'd put in to try to resolve the issue yesterday had gone! I read the warnings dialogue and found this... Unable to complete operation due to failure removing previous file. Plugin Data\MBWRfarmhouse may be locked or read only. the warning went on to say that data was saved to a new file MBWRfarmhouse.tes Renaming my files and changing the .tes to .esp and running lodgen gave me water almost as far as the eye can see when in game (I'd added texture 5 to 6 cells further out.) Now I've just got to work out why the hell this has happened to my .esp.