Hallstavik is a locality situated in Norrtälje Municipality, Stockholm County, Sweden with 4,476 inhabitants in 2010. The town is famous for its papermill and the Speedway team Rospiggarna. The modern Hallstavik. An established project organization, Hallstaviks Network, coordinates everything that happens in and around Hallstavik. Outdoor swimming was completed and inaugurated in 2010. Other projects are meeting places for the youth and Skebo Rivers, focused on sportfishing for trout. Holmen Paper is a business area within the Holmen Group with paper mills in Norrköping and Hallstavik.
https://en.wikipedia.org/wiki/Hallstavik