Suvipäivä is an annual stakeholder event that aims to preserve and improve HSL's connections with public transportation stakeholders. The event brings together a large number of decision-makers and experts to engage and experience high-quality content, entertainment and networking. Suvipäivä has grown into a tradition over the years, and the delightfully high number of participants year after year speaks to the event's appeal. This time, in addition to the seminar program and along with averagekidluke's and Hatsolo's performances, the cocktail part of the program was enhanced with a quiz to promote networking.