This spring festival is a popular carnival that has traditionally been celebrated by workers and students.

On the eve of May Day 30.4. 18pm, students gather at the Market Square to wash the statue of Havis Amanda and place a student cap on her head. The celebrations continue throughout the city.

The following morning everyone gathers in Kaivopuisto Park and Ullanlinnanmäki for a picnic and more sparkling wine. Parades and other events are also held around town.