ТЕМЫ

Tammerkoski is a used-to-be rapid that flows through the city of Tampere from Näsijärvi lake to Pyhäjärvi lake. On the way there's four water power plants so flow is tamed.

Pictures of this theme were originally arranged from upstream to downstream. That's not the case for the latest ones, because ordering photos of a theme is one more feature which does not work anymore on this site.