Doggerland was an area now beneath the southern North Sea that connected Great Britain to continental Europe during and after the last glacial period. It was flooded by rising sea levels around 6,500 -- 6,200 BC. Geological surveys have suggested that it stretched from Britain 's east coast to the Netherlands and the western coasts of Germany and the peninsula of Jutland. It was probably a rich habitat with human habitation in the Mesolithic period, although rising sea levels gradually reduced it to low - lying islands before its final submergence, possibly following a tsunami caused by the Storegga Slide.
when did the land bridge between britain and europe disappear
around 6,500 -- 6,200 BC