Ever been tempted by cliff jumping? Check out this video for some rather extreme cliff jumping and diving in Hawaii.Not content with the natural heights of the cliffs in some instances, there’s alsosome rather insane trampoline jumps thrown in for good measure. And one or two nasty belly-flops, too! Don’t try this at home is the message here… you need to know what you are doing – even professional cliff divers sometimes get caught out with fatal consequences.