Amusement park in the heart of Helsinki. This is the place where Helsinkians have screamed in the haunted house as a kid, had their first dates in the legendary wooden roller coaster and eaten cotton candy in ferris wheel when retired. There's also nice restaurant area called Kattila. Contemporary meatball bar Kuula is recommended.
It's quite expensive to go to the rides, but entrance is totally free. There's even one ride Panoraama for free. It's not very intense, but lifts you up to the air and shows the sight of Helsinki from high up. If you want to pay to go to one ride, choose the wooden roller coaster.
Check the opening hours before you go, they change weekly! But basically open Mon-Sun on summer.