Île de France, 8 May 2016. Silviu and I officially launched Project Grand Randonnée (PGR) in Île de France. We ran 33km/D+507m from Saint Rémy-Lès-Chevreuse to Villiers-Saint-Frédéric. We plan to complete the 675km route through a series of runs. Sentiers De Grandes Randonnées Sentiers de grandes randonnées (Long hiking trails or “GR”) is a network of …