It's no secret the Kennedys are avid skiers. Michael Kennedy, brother of Robert F. Kennedy Jr and son of Robert. F. Kennedy passed away in a skiing accident in Aspen on New Years Eve in 1997. RFK Jr. has created multiple benefits for environmental causes through the sport. The race has hosted Robin Williams, Alec Baldwin and other celebrities at Deer Valley and other resorts to raise money for RFK Jr.'s Waterkeeper Alliance. Here, he is seen at the 2007 Ski Classic in Vail.