A rider departs from the shore with his bathtub boat during the Bathtub Races at Kitsilano Beach in Vancouver, Canada, Aug. 10, 2019. (Xinhua/Liang Sen)

A rider competes in his bathtub boat during the Bathtub Races at Kitsilano Beach in Vancouver, Canada, Aug. 10, 2019. (Xinhua/Liang Sen)

A rider jumps off from his bathtub boat while approaching the shore during the Bathtub Races at Kitsilano Beach in Vancouver, Canada, Aug. 10, 2019. (Xinhua/Liang Sen)

A rider jumps off from his bathtub boat while approaching the shore during the Bathtub Races at Kitsilano Beach in Vancouver, Canada, Aug. 10, 2019. (Xinhua/Liang Sen)