When I first entered the forest of Fontainebleau, just 90km south of Paris, I felt like a kid on Christmas morning! I was stunned by all of the perfectly smooth sandstone boulders, and their incredible shapes, colors, and crazy “elephant skin” texture. I kept wondering how nature could have made this place? The best conclusion I could surmise was that the stone was here for a purpose: it was made to be conquered by climbers. Indeed, climbers divined the boulders’ some time ago.