OK so you want to get the BABBDI achievement "way of the climber" i recommend using a mouse for this as it will be difficult with a touch-pad. So after first leaving the apartment building and going left there is a large ditch with posts to jump across your gonna want to FALL DOWN THE DITCH and look for the Pickaxe. Once locating the pickaxe your gonna wanna find the building with the tall radio mast at the roof the approch a wall of the tower and click interact with the pickaxe and jumo and repeat the process until you reach the top unlocking the achivement