After enjoying a scenic cruise through the Delta, join a guided tour to the medieval harbor town of Zierikzee, brimming with delights, from its 16th-century stone-built Gravesteen to its lovely harborside shops and cafes. This excursion includes a photo stop at the Oosterschelde Kering, the largest storm surge barrier of the Delta Works. Alternatively, focus your tour on the history of the Delta Works at the Flood Museum. More than half of the Netherlands lies below sea level and the Delta Works were built to prevent a recurrence of the 1953 flood disaster. Prefer discovering Bruinisse on two wheels? Join our guide for an exhilarating bike tour.