Today we cover the final (and sunny) day of Melloblocco 2017. We teamed up with pro climbers Anthony Gullsten and Jernej Kruder as they try to unlock the secrets of 'Punk Islam,' a boulder graded somewhere around 8a/8a+. Will they be able to climb it before all of the friction disappears in the baking sun? Check out our range of bouldering mats here. Anthony Gullsten And Jernej Kruder On A Monster Boulder | Climbing Daily Ep. 934