Yes that part looks real, as does the celebration afterwards. I think he came down the slide too fast - makes it seem faked to me - and the lack of a splash, or the failure of a small plastic swimming pool to even budge off its spot on the ground, convinces me that its fake. The landing in particular is entirely unrealistic. Had he simply jumped of the top of the take-off ramp from a standing start, (thus reaching the same speed of descent he obtained on this jump) into a lake, he would have penetrated the water to a depth of several feet, certainly over his head (have you ever jumped off a cliff into a river or lake? Your head goes under water, and if you aren't wearing a flotation device, you drop several feet below the surface). Add the forward momentum of his horizontal movement to the activity, and there is no way a 2-foot wading pool would be able to absorb the impact of a 170 pound body landing in it, with virtually no water displacement, no dislodging of the pool, and no broken bones in the jumper. Fake.
