A 1960's Fontainebleau bouldering circuit? Can't be that hard....can it?!!

Franchard Cuisiniere's Parcours Montagne is a 6km, 500 boulders long 'mountain training' circuit created back in the 1960s. Although rarely done these days, it has gained a reputation for being a very tough physical challenge. With no preparation and little information, our attempt to complete it seems unlikely to succeed.... https://www.tl2b.com/2013/05/c-quoi-l... https://cosiroc.fr/index.php/fiches-c... https://www.arthaud.fr/escalade-a-fon... Fastest time found: 1 hour 10 minutes in the 1970s......