GR trails in Île-de-France: GR1, GR2 and hikes around Paris
Around Paris, the GR trails are easy to reach by public transport, so you can hike them in sections of a day or a weekend.
The GR1 loops around the region via the Vexin, the Brie and the Fontainebleau and Rambouillet forests; the GR2 follows the Seine, and the Tours route (GR655) starts from the Tour Saint-Jacques. The GR13 leaves the Fontainebleau forest for the Gâtinais and Burgundy.