The glaciation came and went, and came back, and went again, etc, but that probably means the deposits are both deep and moved around. Plus, “Doggerland” has produced human fossils as well as stone tools (now the floor of the North Sea), and when sealevel was lower, people lived down there.
Good advice too, btw.
I watched a show on Science Channel or H2 or NatGeo...where they were looking for and finding remains of communities in what is now the English Channel. One guy was obviously a boat builder and the pieces of wood found there were dated to, Im going to say,b 12000-14000BP.
cool stuff.