long bike road curve in light green spring forest

maifeldradwanderweg infrastructure countrysite springtime landscape stretches grassland mountain volcanic railroad woodland waterway germany belgium covered straigt walkway spring forest summer former tunnel autumn nature flower garden curve light green eifel rhine hills field mayen polch trail grass plant long bike road area west wide line tree leaf lawn park old country rural scene countryside season seasonal driving street direction marking roads bicycle cycling fahrrad rad bicicleta twowheeled steerable machine pedal riding ride velo biking