Frank Cronin and his brother visited the Grand Canyon, but that wasn't quite enough. Frank is a bit of a thrill seeker and he decided to venture out into the canyon for a better view. With a GoPro in hand, he started to leap from rock tower to rock tower over plunging crevasses. If you want the same dose of adrenaline with a mix of common sense safety measures the Grand Canyon Skywalk is a better choice.