OhLook wrote in post #19329245
Yeah, frozen lakes are so hard to negotiate when they're hilly.

Yes indeed.
But it’s not about frozen lakes, OhLook. Those can obviously be found everywhere. It’s about all the waterways that connect the lakes and cities and villages in the Netherlands. We are a flat country with water everywhere and all those waterways are interconnected and as such have always been used to transport people and goods over, to the most remote places. Boats in Summer, and, in the past, in Winter, when all water was frozen, sledges, pushed by skaters. Already a millennium ago people were skating here in this fashion. Try doing that in hilly country. At a certain point skating also became a form of entertainment and fun. There is a reason we skate and why we win most medals speed skating. And the flat land really does have everything to do with that.