Liesjärvi National Park is about 1.5 hours by car from Helsinki and an alternative to Nuuksio National Park if you live in the Helsinki area. It’s also likely less crowded than Nuuksio National Park or Sippoonkorpi National Park.
I parked my car in the Kopinlahti parking lot and took a short hike to Savilahti, where I pitched my tent, made a fire, and prepared a meal. Later some other hikers joined us, and we enjoyed the night together around the campfire.
This was also a great opportunity to test the astrophotography capabilities of my Sony a7III and Zeiss Batis 25mm (which I’ve now replaced with a Sony 24mm GM f1.4mm lens).