This re-enactment event, organized by the WW2 Battle Wheels group is worth visiting, especially if you are from this area. The camp is based at the site of the Provinciaal Archeologisch Museum at Ename (Oudenaarde).
On Saturday they will do a tour of the Flemish Ardennes in allied military vehicles. You need to register as a participant for this. They will also demonstrate the launching of a DUCKW amphibious vehicle at the Schelde river. Should be fun to watch.
There will also be a militaria show.