Found this whilst having a look around the websites.
" Only one track has held a GP every year since the Championship started up in 1949, it is the Circuit Van Drenthe, better known as Assen, and its longevity has imbued the place with a sense of history you can`t find anywhere else."
see <A HREF="http://www.amasuperbike.com">www.amasuperbike.com</A> good article by Julian Ryder.
cheers Stella

It is a fabulous place, and on a sunny day, there is absolutely no shelter!
The village nearby is lovely too.

Will need to add it to my "things still to do" list ?
cheers,
Stella