Before revision: Sometime in the 1980s, Robert Carlson began running rivers in California, U.S.A. using an ocean bodyboard eventually redesigning it to to be thicker, longer, with two additional handles.
After revision: ,Sometime in the 1980s, Robert Carlson began running rivers in California, U.S.A. using an ocean bodyboard eventually redesigning it to to be thicker, longer, with two additional handles.