2It was the signature attraction of Atlantic City's Steel Pier from the 1930s to the 1970s, the golden age of "America's Favorite Playground" Doc Carver's High Diving Horses. Four times a day, seven days a week, a trained horse wearing only a harness ran up a ramp, a diving girl jumped on its back, and they both sailed forty feet through the air, plunging into a ten-foot-deep tank of water.