The Quaternary geological history of the Wadden Sea is fascinating, as landscapes changed from warm shallow seas to glacial environments scoured by ice. Robin Schaumann, master student earth sciences at the Rheinische Friedrich-Wilhelms Universität in Bonn, Germany, wrote a paper in the Netherlands Journal of Geosciences about the Pleistocene and Holocene history of the island of Norderney in the German Wadden Sea. He used shallow seismic and a series of boreholes to reconstruct how environments changed over time and how the shape of the current tidal channels is influenced by what happened during the Saalian ice-age!