this is indeed still cornwall (and will be for a while). I'd forgotten aout the lego spill after watching a tom scott video about it ages ago, but I might need to start searching! But i'll probably forget again. I wouldn't have thought I'll have much luck seeing as I'm on the north coast and the spill was by land's end but supposedly they've got as far as the netherland so who knows…
Yeah I honestly don't know much but I’ve never found any so it would make sense that it only appears on some coasts