Let us start in the very north. Groningen province lies on the edge of the Wadden Sea World Heritage Site. From the dykes a vast expanse of water can be seen, alternating twice a day with an artistic composition of channels and sandbanks, and thousands of birds.
Before monks discovered the art of dyke building in the Middle Ages, the sea posed a threat to farmers on the flat lands. They built mounds to protect their farms, churches and cows from flooding.