The GR5, which mainly corresponds with the Europe 2 (E2) route, is perhaps the premier long distance hiking trail of Western Europe. GR stands for “Grande Randonnée”, which in French means a long distance hike, or hiking trail. The GR5 begins at Hoek van Holland on the North Sea, and ends in Southern France at the Mediterranean. It joins together many previously existing hiking trails, and a few new sections. It is laid out to traverse along, or to cross as many mountain ridges and highlands as possible—in Belgium, the Ardienne mountains; in Luxembourg, the hills by the rivers; in France, the Lorraine plateau, the Vosges Mountains of Alsace.