heathland with trees and fen in kalmthouth heath nature reserve

belgium blue clouds cloudy danger day dry ecology ecotourism environment europe fen fire flanders flemish fluffy forest grass grassland heath heather heathland hike hiking hot kalmthout kalmthouth lake landscape mere nature outdoors park pine pond protected reflection reflections reserve sand sandy shrub shrubland shrubs sky spruce summer summertime sunny tourism tourist tree trees view water zoom