What Is a Water Hazard in Golf?

A “water hazard” is any sea, lake, pond, river, ditch, surface drainage ditch or other open water course (whether or not containing water) and anything of a similar nature.

All ground or water within the margin of a water hazard is part of the water hazard. The margin of a water hazard extends vertically upwards or downwards. Stakes and lines defining the margins of water hazards are in the hazards. Such stakes are obstructions. A ball is in a water hazard when it lies in or any part of it touches the water hazard.

Note 1: Water hazards (other than lateral water hazards) should be defined by yellow stakes or lines.

Note 2: The Committee may make a Local Rule prohibiting play from an environmentally-sensitive area which has been defined as a water hazard.