May 17th Celebrations in Oslo. Known as the National Day or literally "Seventeenth of May", as people usually call it. On this day Kings Guard, Mounted police, various marching bands, people in traditional outfits called "bunad" and school children march towards royal palace in Oslo, where the Norwegian royal family greets them from the main balcony. https://en.wikipedia.org/wiki/Norwegian_Constitution_Day Bunad https://en.wikipedia.org/wiki/Bunad Young people in funny red overalls and capes are school graduates called "Russ": https://en.wikipedia.org/wiki/Russefeiring