We predict that ' extreme' activities will develop as a significant component of the adventure tourism industry (see Box 12.1) . These physically challenging activities will be based on a 'harder,faster,deeper' mentality challenging activities become more popular, people,people will push the boundaries of performance and achievement levels-hence the development of sports such as speed skiing.Many of the Activities that from the adventure activity milieu, such as mountaineering, Amateurs and spurred on to achieve similar standards. The competitive aspect of sport is one of the driver of the development of more extreme activities.
Mintel (2001a) identified some of these, notably skateboarding, inline skating, wakeboarding and snowboarding, as ' lifestyle extreme sports'. These are sports that place more emphasis on clothing, codes of behaviour, music and language. Some of these have less potential as mainstream tourism activities, as they can easily be undertaken at home, but snowboarding and wakeboarding need resources that merit travel. In addition, three emerging extreme sports are identified as having the potential to be the next popular trend: kite-surfing, street luge and parakarting.
Mintel's survey of extreme sports (2000a) suggests they are of most appeal to the 15-34 age group, with teenagers looking forward to being able to