December 4-7 Meet and carve moguls at the WHISTLER FILM FESTIVAL. Held at the famous B.C. resort, the fest brings together big-time and budding adventure filmmakers showing some 40 new flicks. www.whistlerfilmfestival.com

December 7 Catch the first of five dog duels in the Alaska Dog Mushers Association's 59th annual MUSHERS CHALLENGE SERIES, in Fairbanks, with 300 canines heaving sleds, skis, and humans. www.sleddog.org

December 11-15 The MILD SEVEN OUTDOOR QUEST draws 32 elite adventure-racing teams to Borneo's Sabah state. The seven-stage, 182-mile course includes a 360-foot rappel into the notorious Low's Gully and ends at the island's north tip. www.msoq.com

December 12-14 Twelve hundred mud maestros gather in Portland, Oregon, to pedal, hurtle, and slide a 1.8-mile course in the CYCLOCROSS NATIONAL CHAMPIONSHIPS. www.usacycling.org/cx

December 26 Top ocean racers head to Australia for the SYDNEY HOBART YACHT RACE, one of sailing's toughest trials. www.rolexsydneyhobart.com

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