Originally Posted by
coastdk
Hi there,
I would really recommend doing a bike tour of the city. You get to see a lot, and there's also lots of interesting information given by the guides.
You don't need to be super fit, the cycling is done at a very slow pace.
http://fattirebiketours.com/berlin
A very enjoyable way to spend the day, including a stop for lunch at a Biergarten.
I would second this notion: Most of the city is served by bike paths, is very flat and easily accessible by bike.
I'd also recommend a stroll through the Tiergarten...