beach blue corrubedo coruna dune effect effects eu galicia nature sand sky Spain wind coastal coastline Cornish cornwall dunes England english flora Great Britain natural plants Roots shore Asia bare barren china desert dry empty sere Tengger yellow banister Barrañan bridge clouds handrail ocean outdoors path sea vegetation walking water wave waves wood coast fence grass lichen post wire wooden alone female girl horizon lady lost stand view cloud Denmark migrating mile Nyberg old Skagen stick marram grass