Making Holland a safe country was not easy: the Dutch had to fight for almost every square metre of land. The large water engineering works of the past centuries, culminating in the Delta Works, are examples of our victories over the sea. How we manage our water and enjoy it can be seen and experienced in various places for example at the Afsluitdijk. From sea to lakeThe 32-kilometre-long Afsluitdijk, built between 1927 and 1933, is an important part of the Zuiderzee Works and connects the provinces of Friesland and North Holland. The Zuiderzee Works consisted of two parts.