LAKE ZELL. by RobMorgan
Hire a boat (there are many of them around the shore) for about 12 Euros for an hour.Motor out to the centre of the lake & switch off....lovely & peaceful.
There is also a larger boat that does round the lake trips, but having your own boat is more fun.
You can also walk around the lake (about 11kms).
The lake is frozen in winter & you can actually walk across.