Doggerland Explained: The Sunken Land That Once Connected Europe A Lost World Under the Sea | The Mystery of Doggerland Ancient Europe Before the Sea | Doggerland Documentary This Land Connected Britain to Europe – Until the Ocean Took It Doggerland was a vast prehistoric landmass that once connected Britain to mainland Europe. Today, it lies submerged beneath the North Sea — but scientific evidence proves it was once home to rivers, wildlife, and early human civilizations. In this cinematic doc