Canyoneering
From CanyonWiki
Canyoning (known in the U.S. as canyoneering) is a sport popular in several countries. It involves travelling down creeks or streams within a canyon by a variety of means including walking, scrambling, climbing, rappelling (or abseiling), swimming and "li-loing" (using an inflatable air mattress). It requires careful preparation, appropriate gear and skills in navigation, ropework, and sometimes climbing.
Typically what separates a canyon from any ordinary stream is the narrow passage created by erosion into bedrock or sandstone, creating beautiful sculptured walls and spectacular waterfalls.
Canyoning can be treacherous. There are risks associated with scrambling down uneven, slippery surfaces and abseiling in wet, cold conditions. Several fatalities have occurred in this sport as a result of flash flooding. The most infamous of which happened when a group of tourists on a commercial canyoning adventure trip were drowned in Switzerland in 1999. [1]

