tightrope walk, Yosemite National Park in California. 走鋼絲，優勝美地公園

Daredevil Mich Kemeter performs tightrope walk 3,000ft up in Yosemite Park | Mail Online
http://www.dailymail.co.uk/news/article-2067526/Daredevil-Mich-Kemeter-performs-tightrope-walk-3-000ft-Yosemite-Park.html