Si Adventure

?Chilling Debut
The Discovery Channel World Championship adventure race got off to a tragic start

?Return of the Hero
Lance Armstrong's first U.S. race in years stirred up a huge crowd

?Good Friday
With her gymnast's training, Dallas Friday has vaulted to wakeboarding stardom

?Inside Out
The first transatlantic kayak voyage, the dirty business of bog snorkeling and more news

?Murphy's Law
Is shark mania a tempest in a chum bucket? Depends on whom you ask