Rafting and white water rafting are recreational outdoor activities which use an inflatable raft to navigate a river or other body of water. This is often done on whitewater or different degrees of rough water.
Kayaking is the use of a kayak for moving across water. It is distinguished from canoeing by the sitting position of the paddler and the number of blades on the paddle
Scuba diving is a form of underwater diving where the diver uses a self-contained underwaterbreathing apparatus (scuba) which is completely independent of surface supply, to breatheunderwater.