More demanding and wilder than a zumba session in front of the Extreme Market, nothing is more invigorating than a good moshing lesson on the meadow, or even on the cobblestones of the Mainstage for the more reckless and the least fools! With sports coaches as sharp as Scott Ian and co., the session promises to be furiously tough but fortunately jubilant to the sound of the fast anthems of the thrash legend hailing from Big Apple.