We made a family excursion by canoe along river Spree and the wild Müggelspree which is highly recommendable. We went from Fürstenwalde to Hangelsberg, which means we went with the flow but anyway: you can’t do it without effort. You have to have at least one sporty guy/girl on board :-).
You can rent a boat here.
hikeminded 
That looks like fun for a beautiful day. Allan
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It was indeed, Allan, only that I’m not the best oarswoman :-).
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