Water jump

[Britney]

Water jump in Track Events - Steeplechase. The fourth jump in every lap, it is the same height as the other hurdles and 12ft long, but has a water filled trench on the far side. The water depth nearest the hurdle is 28in, sloping upward to track level.

[Ernesto]

an area of water with a fence before it, designed for people or horses to jump over in a competition