17 May in Oslo

If you ever have the chance to be in Norway in the middle of May, grab it! The celebration of Constitution Day, our national day, is cozy and including. Most locals will dress up, many in national costumes, but as a visitor you're welcome to come as you are. There's a children's parade early in the day, usually in the city/town centre, followed by lots of parties and activities distributed all over the place.

Top tip: If you want to participate in the flag waving, you can get one in grocery stores almost for free in the days leading up to the big day.