Sectors
Mur des Carriers
Hill side
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Réta-Rock thumbnail
Réta-Rock
5 Boulder at Retarock
Franchard Carriers / Sablons Ouest

Climbing has been limited!

Park as for Isatis. Walk with the "route de cul de chaudron" towards south - west. Turn right when you come to Route des Gorges de Franchard. Continue until the crossing with Route de Louvard. Here take a forest path towards south - west. This path will take you to Rainbow Rocket.
For the more western areas, keep on the main path to the west until reaching the boulder cluster you are interested in. For almost all boulders there is a visible path.