In Herbeumont, Arnout Hauben sets camp on the shores of the Semois. Heading to the abbey of Orval, he enters the Gaume-region, an area with its own micro-climate. Thanks to the warmer climate, this region is perfect for viticulture. After travelling more than 500 km on the GR129, he finally arrives at his destination: the source of the Semois in Aarlen...