Ключевые слова: amelanchier lamarckii, bicycling, bicyclists, bicyling, bloom, blooming, calluna, cycling, dutch, erica, europe, european, gnr, gooi, goois natuurreservaat, heath, heather, heathland, het gooi, hilversum, holland, in bloom, juneberry, landscape, laren, leisure, nature, nature park, nature reserve, netherlands, noordholland, people, purple, recreation, riding bicycle, serviceberry, summer, tourists, vacation, zuiderheide,