SeikkailuSveitsi offers zip lines in the Swiss-style forest landscapes of Hyvinkää. The courses, built among the trees, challenge your balance and courage with varying levels of difficulty, and include a long MegaZipLine course. The October season runs through October 17, 2026. During fall break week, adventures take place daily, and on the final day, a separately ticketed night adventure is held. Visitors may enter the park on their own during opening hours; reservations are recommended for larger groups. Climbing is not permitted during thunderstorms or stormy weather.