Haut-Vully is a former municipality in the district of See/Lac in the canton of Fribourg in Switzerland. Until 1977, it was officially known as Vully-Le-Haut. Its German name of Oberwistenlach is now little used. On 1 January 2016 the former municipalities of Bas-Vully and Haut-Vully merged to form Mont-Vully. Wikipedia