La Samson

"Dernière Valse" is a challenging bouldering route located in the J.A. Martin area. Graded with a difficulty level of "FB5", this route features a vertical wall that poses a significant challenge to climbers. As the 50th route of the Red circuit, it is one of six routes on the boulder named Dernière Valse, offering climbers a variety of challenges. The route's topo image provides climbers with a clear visual representation of the general climbing direction, allowing them to strategize and tackle the climb effectively.

L'Inversée Satanique is a challenging bouldering route located in the J.A. Martin area. This problem is graded as "FB5" and features a wall with underclings, providing a physical and technical challenge for climbers. Ranked as the 39th route on the Red circuit, L'Inversée Satanique is one of two routes found on the boulder named Satanique. Climbers can refer to the topo image to understand the general climbing direction, while also finding inspiration and guidance from a related video showcasing beta for this demanding route.