nature reserve with sanddrift

barren bblackandwhite bent clouds drift dune dunes dutch empty europe expanse extensive extensiveness extent flat footstep footsteps grain grains grass gritty heap heaps hill hills holiday holidays holland kootwijker kootwijkerzand landscape loneliness lonely natural nature netherlands outdoor outside pit pits plain reserve sand sands sandy shifting solitude spring stretch sun sunny tourism touristic travel tree trees uncultivated vacation vast zand