A true circular tour, only 100m duplicated, along the Spree and a canal. The tour continues through the very centre of Berlin, under bridges so low you have to duck on the top deck, up and down in locks,and and re-crossing the line of the Wall. Commentary is in German only, but you don't need it.
Starts from Schloss Charlottenberg. About 1/2m walk from Opera U-bahn station.
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