https://www.youtube.com/watch?v=Wml8sn2Jux4&feature=youtu.be Newsflash This is the incredible moment professional water skier Landen Letwin performs push-ups on the water’s surface while being pulled by a speedboat. Letwin, 25, who comes from Thunder Bay, a city on Lake Superior in the Canadian province of Ontario, carried out the feat in the community of…