Adventure racing (also called expedition racing) is
typically a multidisciplinary team sport involving navigation over an
unmarked wilderness course with races extending anywhere from two hours
up to two weeks in length. Some races offer solo competitions as well.
The principal disciplines in adventure racing include trekking, mountain
biking, and paddling although races can incorporate a multitude of other
disciplines including climbing, abseiling, horse riding, skiing and
white water rafting. Teams generally vary in gender mix and in size from
two to five competitors, however, the premier format is considered to be
mixed-gender teams of four racers. There is typically no suspension of
the clock during races, irrespective of length; elapsed competition time
runs concurrently with real-time, and competitors must choose if or when
to rest.