Ryan's human-powered adventures are always inspiring as he proves that anyone can get out and explore the great unknown. Extreme Treks is part adventure, part exploration and part education. The best way to understand and respect the world around us is to put yourself right in the path of Mother Nature.　　Episodes: Tanzania, Morocco, China, USA, Peru, Nepal, Italy and Oman.更多《崇山峻岭极地行 第二季》完整免费视频、崇山峻岭极地行 第二季在线高清播放免费观看、崇山峻岭极地行 第二季免费在线观看相关欧美综艺资源，请持续关注开述影城!