The river flows throuh both Eno and Joensuu, and near Joensuu it goes to the lake Pyhäselkä. Well, in the next pictures you'll already see Pyhäselkä. That's where Joensuu's got it's name - "joki" means river and "suu" means mouth. Those wooden things are for log transportation (i cannot think of the correct name in english just now).