Racers follow the stream -- jumping off small cliffs and through waterfalls -- and a final rock face at the base creates one of the last challenges, requiring concentration and crab-walking to climb down.
BBC: An Alaskan-style Fourth of July
Aly Raisman didn't use one in Thursday's all-around final, which her coach, Mihai Brestyan, called a strategy to sharpen her concentration.
WSJ: Social Media
应用推荐
模块上移
模块下移
不移动