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This is a long-distance hiking route on the edge of the Île-de-France region, which complements the similar GR® 1 route. Most of the stages can be completed in a day from station to station, and some can even be split in the middle, particularly the first few. However, other stages require an overnight stay or more, as some of the regions crossed are less well served by transport. Therefore, find out about accommodation options and any closures due to work on the rail network before setting off.
I completed this route on my own over a period of two years, with no particular continuity between stages, depending on the weather, work on the rail network and my availability at the time. Out of necessity or choice, I spent several nights on site.
The route has 34 stages, generally 20 to 30 km long (sometimes a little more, sometimes a little less), for a total length of over 850 km! The stages are therefore quite long in general and are reserved for experienced hikers, at least in the form presented here. That said, they do not present any particular difficulties and there are never any significant elevation changes, except for a few rare steep paths that are never long and, particularly in the Fontainebleau forest and the surrounding mountains, a few potentially steep trails that are reminiscent of certain mountainous terrain.
The route is generally well marked with red and white GR® signs, although you may sometimes stray from the GR® for practical reasons or to visit a point of interest that is slightly off the beaten track. However, a map and/or GPS is essential.
For details of each stage, see the associated information sheet.
Visorando member
Moderate 
Easy 
