ursynow district of warsaw, poland - kopa cwila artificial hill as a local landmark and outdoor activities destination for

warsaw ursynow dolina sluzewiecka valley potok sluzewiecki creek smrodka sluzew nad dolinka mokotow poland warszawa polska exterior outdoor outside activities walking jogging greenery sky early spring green grass grassy park public time recreation river blocks block residential architecture buildings urban district kopa cwila artificial hill local landmark destination mazovia 20190223 residents season