A large difference in beach surface elevation has been observed at beach restaurant Zilverzand between June 2009 (Ecobeach installed) and April 2015 (without Ecobeach).
Beach restaurant Zilverzand with Ecobeach June 2009
Beach restaurant Zilverzand with Ecobeach June 2009
Beach restaurant Zilverzand without Ecobeach April 2015