In January of 2008, Salt Spring couple, David Denning and Deborah Miller received an invitation to join six 'friends of a friend' on a 16-day rafting expedition down the Colorado River through the Grand Canyon. This is a muti-media story of natural history, geology, excitement and camaraderie from that amazing adventure. The event is co-sponsored by the Salt Spring Library, Nature Salt Spring and the SS Trail and Nature Club. It will be held at the SS Library, March 21, at 7:00 pm.