By the Sea?

[Tartar Horde]

Here's a tip for anyone living in these areas who wants to map the old settlements that hugged the higher areas of land. You could just use an OS map, fair enough that gives you the high ground but it doesn't tell you where the old rivers, marshes and bogs are. I was taught in my Archaeology days to map out the old medieval and Norman/Saxon churches as I guarantee you they will be built on or near the highest ground in low lying areas. If you map these and also find the old roads and byways, by linking the two you can make a map that will give you the ability to navigate your area if and when it floods. Many of the roads in these areas will be under water leaving only the old routes that will still be viable.
Google Earth is a fantastic resource for this as you can plainly see Archaeological traces such as former river beds, lakes etc.