The cerebral palsy charity, Scope, is calling for winter sports enthusiasts to join its 'unique' ski and board challenges.

The 2007 White Peaks Challenge, which Scope claims is the largest UK charity ski and board event, takes place in Zell am See, Austria, on March 17th to 20th. Participants cover 24 peaks in 48 hours.

A Colorado Ski and Board Challenge takes place from January 26th to February 3rd 2007 and a Utah Ski and Board Challenge is scheduled for February 29th to March 8th 2008.