In the 1950's, the Netherlands suffered a horrendous flood at the culmination of a spring tide and an unusually powerful North Sea storm. The property damage and human cost was terrible - it would make New Orlean's trouble with Hurricane Katrina look childish in comparison. As a result, the government instigated the Delta Works project - a massive 40-year plan to build a series of sea defences to protect the predominantly below sea-level country from ever suffering the same catastrophe again. Successive governments funded the project through completion and the Oosterschelde was one of (if not the) last projects to be completed. The exhibits here walk you through the history of the flood and the consequent construction of the flood defences all over south Holland. The engineering is nothing short of genius and covered all aspects of flood barrier construction, taking into account the effects on nature, how to still allow ships in and out without contaminating the waterways, and many other issues. If you're even mildly interested in engineering, ships, sailing or the sea, you owe it to yourself to go and visit this exhibit. There are plenty of things to keep the kids happy too as well as interactive exhibits. I'm not sure if they're still doing the 'hard hat' tours - I forgot to ask - but I did one a few years ago and it takes you out to one of the flood gates and inside the flood barrier - also well worth the price.