The harbour, crowded with fishing boats and lined with restaurants that serve up just-caught seafood, is where the Dutch herring fleet is launched with a colourful Vlaggetjesdag (Flag Day) celebration each year on the first or second Saturday in June. Fishermen's wives dress up in their traditional costume. The fleet then returns with the new season's herring catch, amid much fanfare. Held on 18 June in 2016.