I didn't get to see any boats in Berlin so no chance of a Boats! Boats! Boats. Instead, here's two views of Berlin.
Firstly from above, the best views are from the TV tower (above) as can be seen here:
Can you spot the tethered balloon near the sunset?
Another view of Berlin can be found by going on one of the tours of Berlin Underworlds. The one I went on visited a Second World War bunker and then a Cold War fall-out shelter, complete with airlock, shower and claustrophobic bunk beds: