What is a watershed? Learn about watersheds with this clip from Surfrider Foundation's educational video "From Sea to Summit: A Journey through the Watershed" starring Sal Masekela, Brad Gerlach, Donovan Frankenreiter, Tony Hawk and Tara Dakides. The full DVD is available through mail order at or watch the whole thing on Google Video at #. The Surfrider Foundation and FilterForGood, a partnership between Brita and Nalgene, are teaming up to promote the importance of clean water and show individuals small changes can make a big difference for people and the environment. Visit to learn more about the initiative and how you can help. Distributed by Tubemogul.