Le GR Bloc

Le GR Bloc, a challenging bouldering route in the Petit Bois area, is known for its difficulty level graded as "FB6b." This route offers climbers a unique experience with its traverse and wall climbing features. Positioned as the 14th route on the Black circuit, Le GR Bloc is one of the two routes situated on the boulder called Allonge. Climbers can refer to the topo image to understand the general climbing direction and tackle this demanding problem.