I wasn't thinking of ship burials (though thanks for the beowulf pointer, I didn't know that, and in returns here's an allegedly eyewitness account of one https://en.wikipedia.org/wiki/Viking_funeral#Ibn_Fadlan%27s_...), but something much smaller and older.
There was a report of a discovered boat burial on doggerland, on land (before doggerland flooded. That would have been at the end of the last ice age). I can't find it now.
Sutton hoo is saxon IIRC. No, the villages/communities you mentioned are the ones that were drowned when the ice melted - before that the UK was much larger and joined to the continent https://en.wikipedia.org/wiki/Doggerland. That was the boat burial area I meant. I did dig but can't find it, sorry.
There was a report of a discovered boat burial on doggerland, on land (before doggerland flooded. That would have been at the end of the last ice age). I can't find it now.