Duinrell One of several new Gerstlauer Sky Fly rides that debuted this season, Wild Wings at this Dutch park near The Hague stands 22m- high and features 12 interactive seats, which riders can flip from side to side and through a series of somersaults by operating levers on either side. This is not the first Gerstlauer attraction in the park; the German manufacturer also supplied two of Dunirell's three rollercoasters.