Canoeing navigation

Vltava, Sázava, Lužnice, Otava, Ohře, Berounka, Orlice, Nežárka, Jizera, Morava, Dyje. Guide and navigation for paddling Czech rivers. When will we get there? How many weirs are we going to pass by? Which line to choose? I'm hungry, is there any restaurant? Where are we going to camp? How is called the castle nearby?