Definitions for "Open water"
A term used for the unsheltered lakes, estuaries, the sea or a very wide river.
A large area of freely navigable water in which sea ice is present in concentrations less than 1/10 (1/8). There may be ice of land origin present, although the total concentration of all ice shall not exceed 1/10 (1/8).
A swim that occurs outside of a pool in a lake, river, ocean etc.
An open water jump is also an obstacle found in the equestrian sport of show jumping.
temporarily to permanently flooded areas characterized by the absence (or low abundance) or emergent plants.