Ooh, that's exciting. I do love that part of the world, Suffolk and Norfolk, and expect there is a lot more ancient stuff to find in those counties. There is deffo something limnal about some of those off the beaten track places in the region. They found some of the oldest footprints outside of Africa in Happisburgh some years back, and like the footprints that regularly turn up at Formby Point, they were gone in a few tides. https://www.bbc.co.uk/news/science-environment-26025763
https://en.wikipedia.org/wiki/Happisburgh_footprints