. it's among the last traces of the 5K year old shoreline, as other fossil-dunes were either bulldozed or built-upon. http://www.waymarking.com/waymarks/WMYRBK_Dune_fossile_de_Ghyvelde_Ghyvelde_France It lies on the borders of Belgium & France, & Belgium has also saved their extension from development. // This particular dune is protected from the wind by 2 other dune systems, & the regional authorities have set up a grazing rotation to prevent invasive species getting a foothold & permanently altering the landscape. Bravo! - terry .