This is generally referred to as a waterfall or cataract.
i thinkflow of data from one place to other place is called a stream...
bed
a water fall is where a river or stream falls over a cliff or high rocky place.
A headwater is the place from which the water in the river or stream originates. It is also called the source of the river or stream
stream, creek or either a lake or a ocean
Aristotle would explain a falling rock by saying that the rock's natural place is on the ground, so it falls towards the Earth to reach that place. He would describe it as the natural motion of the rock seeking its proper location.
A place where water flows over rocks to a lower level is called a waterfall. Waterfalls occur when a river or stream descends sharply, often creating a stunning natural feature as it cascades over the edge of a cliff or rocky ledge. The falling water can create mist and rainbows, adding to the beauty of the landscape. Examples include Niagara Falls and Angel Falls.
it is called the mought or mouth
The place near Te Kuiti that means "clear stream" is called "Te Kuiti" itself, as the name is derived from the Māori language, where "kuiti" translates to "stream." Additionally, the nearby area of "Mangapeehi" also refers to a clear stream, with "manga" meaning stream or creek in Māori.
congo
There is such a place in the book The Sky is Falling by Kit Pearson, but, in reality there is not. There is though a farm in England called Ringden Farms but apart from that, not really.
Splashing