In Sweden, a folkpark (approximately "people's park" in English) is a public recreation space, usually featuring large grassed areas, trees, children's play facilities, etc.
Most towns and cities have a folkpark.
These parks were originally created by the labour movement as places where political rallies could be held and where workers and their families could unwind.
[1] In larger folkparks, there is sometimes a bandstand or stage, and they are used for concerts and other entertainment.
Summer folkpark tours are a traditional part of the touring circuit for bands, etc.