The www.visittampere.fi website has plenty more ideas for getting active in and around Tampere, including fishing information.
Hiking North of Tampere
The Pirkan Taival is a loose network of hiking trails totalling 330km in an area that stretches from Helvetinjärvi National Park westward to Seitseminen National Park and beyond. It’s easy to work out your own route here; it’s well marked, and regular signboards show distances. Scenery ranges from peaceful Finnish farmland to marshes, forests and gravel ridges. Huts and camping areas offer overnighting options. Trailheads reachable by bus from Tampere are Virrat, Ruovesi and Kuru. Buy a map at Tampere bookshops or the Seitseminen park visitor centre.