There's nothing more pleasant than perching on the banks of a river and watching the water move downstream. Why not pack a picnic lunch and spend a leisurely few hours at Ostravice River?
When you've spent a bit of time at this Carpathian Mountains flowing body of water, why not check out Ostravar Arena, Ostrava Zoo, and Technical University Ostrava? They're near Ostravice River and also popular with many travelers.