Warsaw seen from the river

The whole summer the "Water Tram" will sail again every 2 hours or so from the quay down opposite to the Royal Palace to the Łazienkowski Bridge and back. We did that trip last year - and I have to say it was very enjoyable. Despite living in Warsaw for 4 years, I saw it from a complete different side.
They also do in the weekend day excurions to the lake "Zalew Zegrzynski" in Nieporęt.
A nice place peaceful lake (provinding you pick the right beach), and you would not even think you are close to the capital.

Oh, I didn't know about this. I hope I can work it into a schedule.