Canyoning (or canyoneering) is a sport that involves descending gorges carved in rock by mostly shallow steep streams of water. These characteristics means that the stream banks are often inaccessible. So once you start hiking down you cannot go back up, you can only keep on going until the next way out. Fans usually refer to this type of environment using the term “natural canyon”.

Waterfalls are the main obstacles in a canyon, so in order to travel through them, ropework is required, along with jumps, slides down and abseils. Often ponds forms at the base of the falls, so after the descent it could be necessary to swim shortly to reach the shore.
The use of ropes means that there will be an anchoring system already set. These anchors are usually made of screw anchors or anchors fixed with special resins. At the end of a descent all ropes are gathered, in order to use them again in the next descent (another reason why it is impossible to go back). A descent can last from 2 to 8 hours, plus the the walk uphill to reach the entry point of the canyon.

Much rarer are longer routes that require camping at night. Canyoning is a group sport. For safety reasons it is not advisable to venture into canyoning routes alone.