Koningsdag (King's Day) is a national holiday in the Netherlands, celebrated annually on April 27 in honor of the birthday of the Dutch monarch, King Willem-Alexander. The day is marked by lively street celebrations, including music, parties, and outdoor markets, where people dress in vibrant orange—the color associated with the Dutch royal family. Major cities like Amsterdam host large festivals, boat parties, and concerts, while smaller towns also engage in local events. It’s a festive, patriotic occasion, with a focus on fun, community, and national pride.