Where is that world's longest water slide in Germany?

Question

Have you been there?

Answer 1

The world´s longest waterslide isn´t in Germany, it is in Austria. The waterpark is called "Sonnentherme Lutzmannsburg"

You´ll find further information at:

http://www.sonnentherme.com/index.php

Answer 2

Sonnentherme Lutzmannsburg, it's a water park in Austria not Germany has the longest waterslide in Europe and actually in the world, measures 211 meters in length with a 6 meter freefall, light and sound effects, even includes an elevator to get back up.