white water 
noun [mass noun, often as modifier]
Fast shallow stretches of water in a river: white-water rafting...
- I'm told that the Orchy is also the most thrilling river in Britain for white-water rafting.
- The steep hills and valleys also offer superb rivers for white-water rafting.
- They can go white-water rafting and swimming, and Youth in Action days teach orienteering, map-reading, team-building and first aid.
- make a fight of it
- make a fool of
- make after
- make a fuss
- make a fuss over (or of)
- make a galah of oneself
- make (a) game of
- make a go of
- make a hames of
- make a hash of
- make-ahead
- make a hit
- make a hole in
- make a Horlicks of
- make a House
- make a joke of
- make a killing
- make allowance(s) for
- make a man out of someone
- make a market
- make a match
- make a meal of
- make a mess
- make a mess of
- make a mockery of