I plan to cycle from Zeebrugge (Belgium) to Prague (Czech Republic) over 8 days via Germany. My proposed route is below. If anyone's done any of those routes, could you advise me about what it's like? I'm particularly looking for details of the surface (ie, tarmac/asphalt/gravel) and hillclimbs. The hillclimbs are a big one for me, because I need to know which days I'll not cover as many miles as I would on flats (Google maps is bad for understating hills!).