We are going to visit two imaginative monuments: the last working tidal mill in Flanders and the Graventoren. Mercator left his mark on history here; discover the fascinating story with a guide. You will discover live how craftsmanship, technology, nature, and trade found each other in the sixteenth century. Practical What Bezoek de Graventoren and Tidal Mill. Where Meeting with the guide at the information point Rupelmonde | Nederstraat 2 | 9150 Rupelmonde Registration Registration is possible until Saturday at 11 AM prior to the visit. Registration is possible from Monday, May 4, 2026.