water jump

any small body of water that a horse must jump over, as in a steeplechase.

Origin of water jump

First recorded in 1870–75

The boys spread out and their horses took the water-jump splendidly.

The Trail Boys on the Plains |Jay Winthrop Allen
He rides steeplechases, and though he is half drowned in a water-jump, and suffers other hindrances, he wins the race.

John Leech, His Life and Work, Vol. II (of II) |William Powell Frith
Most of the fences are high posts-and-rails or "snake" fences, although there is an occasional stone wall, haha, or water-jump.

Hunting the Grisly and Other Sketches |Theodore Roosevelt
As Johnston was leading his horse away, the gentleman who had fallen at the water-jump came up to him.

Bred In The Bone |Thomas Nelson Page

He learned how to gather himself for a sail through the air over a hurdle or a water-jump.

Children's Literature |Charles Madison Curry

water jump

a ditch, brook, or pond over which athletes or horses must jump in a steeplechase or similar contest