Every time I visit Holland I go to the Hoge Veluwe National Park (near Otterlo on the Veluwe). Within it is the Kröller Müller Museum. At the entry of the park are hundreds of "white bicycles" which one can borrow for free to drive through the park. That is what Ank and Judith made me do !! All 20 km of it. I fell off twice and my bum hurt for an hour after this folly. But I must admit I did enjoy the ride too.