The Netherlands' outdoor life is shaped by water management on a continental scale — 26% of the territory is below sea level — and that relationship with engineered landscape produces its own specific outdoor culture. The Hoge Veluwe National Park in the east is a 5,500-hectare estate of heathland, forest, and sand drift dunes with red deer, wild boar, and free white bicycles at every entrance; the combination of art museum (the Kröller-Müller, with the world's second-largest Van Gogh collection) and wildlife park in one location is genuinely unusual. The Wadden Sea UNESCO World Heritage site — the world's largest unbroken intertidal sand and mudflat system — is walkable across to the barrier islands at low tide with a guide, a practice called wadlopen, which is specific and excellent. The Delta Works in Zeeland, where the North Sea flood barrier infrastructure intersects with tidal wetland bird reserves, is as much a landscape as an engineering achievement. Tours by locals who know the landscape beyond the obvious map pins reveal the hidden gems. It really hits differently.