birch forest on a sunny summer day in kalmthoutse heide nature reserve

adventure belgium betulaceae birch blue campine camping clear color colourful day deciduous environment flanders flemish flowering flowers foliage forest grass green growth heide hike hiking kalmthout kalmthoutse kempen landscape low nature pioneer preservation reforestation reserve sky species spruce summer summertime sun sunny trees trunk trunks view wanderlust wild wilderness wood woodland outdoor tree