First go to factory roofs then go across the red bridge on the far left then climb the stairs and once you reach the top,go run and jump on the pipe.Place a session marker and spread eagle infront of a car! Happy killing!
When you bail, you can push off the ground to try and cover some extra distance or to make your bail last longer. You can do this by pressing the R2 trigger, but don't just randomly attack this poor trigger, doing so will actually slow you down and quickly stop your bail. To get maximum speed, height and distance, wait until your skater's feet are on the ground and hit R2 and you will push off the ground at pace.
You can get onto the roof of any building in Skate 3, you just have to use a little imagination. The easiest way is to open up the 'Object dropper' by holding L1 and pressing circle. If the building has levels of roof, such as the large, orange roofed, two storey buildings, can be accesed by placing a slide (in the ramps section) to get onto the first part of it. Then, to reach the uppermost roof, you can use a landing ramp (also found in the ramp section). Set your marker by holding L1 ang pressing up on the d-pad, and Skate.
If you need to hit a ledge/rail that's too high, or whatever, you can get off you board and run towards the ledge. When close, jump and get back on your board. You'll land in a grind, and be closer to owning that challenge.