"No stream is unconquerable; the real obstacle is the fear within," calls out Changko, a river trekker since 1992, to a team member in the process of rappelling down a waterfall face. While striving to explore the water's source in any stream, river trekkers, too, seek the source of their own lives.
「沒有溯不過去的溪谷，會過不了的是自己內心的恐懼，」從 1992 年開始加入溯溪行列，至今已有 15 年經驗的昌哥，看著正在穿越瀑布垂降關卡的伙伴大聲地說著。在探訪溯溪水源頭的過程中，每位溯溪者也正在追溯自我生命的源頭。