Welcome to the group. I know what you mean about flat roads.
I live in South Florida and the roads here are mostly flat and
straight too. I'd love to take my bike to the canyons of the American Southwest and do some serious carving, but that would
be a exstreamly long trip to make for me. Anyway that's a nice
bike you have. Randy
If I recall, the road from Haarlem to Zandvort has some nice curves. Some nice roads around Huizen and Hilversum too. Been almost a year since I was out that way. Used to travel there on business all the time.