What is "koedijk"

Koedijk is a village in the Netherlands, in the province of North Holland. It is now a part of Alkmaar and of Langedijk, but before 1972 those two parts were a separate municipality first mentioned in the 14th century. Koedijk is most famous for its annual Gondelvaart. This gondelvaart is held every year on the 3rd Saturday in August.