Riding through a "Stiltegebied" or "Silent Area". There are many such places within easy cycling distance of Assen, where if you stop you'll hear nothing but the sounds of nature:
Planning a route on an evening in August 2011:
Below you'll find a video we made in May 2009 while trying out, and writing up, a new cycle holiday route. From May onwards, we generally have rather good weather for cycling, and cycling at this time is extremely popular.
The next video was made a month before, in April 2009. It was a bit cool in April, but still very pleasant for cycling: