Body of water with Y
Real river in China (Huang He); fits the category.
A real sea between China and Korea; valid.
Major river in India; a proper water body.
Real river in Austria; the Ybbs is well known.
Famous river in China; clearly a water body.
Common name for the Yangtze River in China.
The words in the list Body of water with Y come from players of the word game Categories game.