Alignment of wooden piles planted in the sand to disperse the energy of the swell and favor the return of sediments, winter, Opal Coast, France

regional natural park ecological engineering sand beach winter erosion overview temperate sea manche horizon surf blue sky january lane caps et marais d'opale (regional nature park) copy space nobody natural park environment protection environment management biodiversity management environment sand shore strand area temperate season seasons atmosphere earth's crust shot sea marine area north atlantic ocean atlantic ocean world sea and ocean landform wave water movement sky meteorological phenomenon month of year enumeration pas de calais 62 nord pas de calais hauts de france france european union europe continent individual regional natural parks ecological engineerings sandy beach sandy beaches sand beaches erosions wear (geology) overviews global sight global sights full length temperate seas temperate ocean temperate oceans horizons horizon line horizon lines surfs blue skies good weather nice weather lanes with nobody