You think Extreme Sport and you got the idea of skate boards, parkour, down hill mountain biking, base jumping, x-fighters, big wave surfing, snowboarding and snowmobiling. Well you are dame right. So let people like Danny MacAskill, Travis Pastrana, Tony Hawk and David Belle show you how to do it. Here is a selection of just some of the great videos out there today. Watch them and be amazed and shocked in equal proportions.