
1) Area of danger 2) Canoe tipper-overs 3) Canoeing challenge 4) Canoeists shoot them 5) Cedar trailer 6) Fast part of a river ride 7) Froth-topped flow 8) Frothy flow 9) Frothy water area 10) French word used in English 11) Hazard for river boats 12) Niagara feature 13) Place for current events 14) Rafters shoot them
Found on
https://www.crosswordclues.com/clue/rapids

1) Chute
Found on
https://www.crosswordclues.com/clue/rapids

An area of broken, fast flowing water in a stream, where the slope of the bed increases (but without a prominent break of slope which might result in a waterfall), or where a gently dipping bar of harder rock outcrops.
Found on
http://www.americantrails.org/

(from the article `waterfall`) ...to a series of small falls along a river. Still gentler reaches of rivers that nonetheless exhibit turbulent flow and white water in response to a ... ...flowing (lotic) and exhibit a longitudinal gradation in temperatures, concentration of dissolved material, turbidity, and atmospheric gases, from ... ...
Found on
http://www.britannica.com/eb/a-z/r/13

Rapids are fast-flowing stretches of water formed where the river surface breaks up into waves because rocks are near to the surface.
Found on
http://www.encyclo.co.uk/local/21748

A reach of stream that is characterized by small falls and turbulent high velocity water.
Found on
http://www.encyclo.co.uk/local/21804

rapids 1. An extremely fast-moving or fast-flowing part of a river, caused by a steep descent in the riverbed. 2. The part of a river where the current moves with more celerity than the common current. A rapids is a section of a river where it loses elevation over a relatively short distance when the stream gradient is locally steepened, causing ...
Found on
http://www.wordinfo.info/words/index/info/view_unit/1830/

Turbulent stream water flow down a steep gradient, but not as steep as in a waterfall.
Found on
https://www.encyclo.co.uk/local/22327
No exact match found.