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《中文字幕无码韩在线久》国语在线观看、中文字幕无码韩在线久高清完整免费、中文字幕无码韩在线久全集在线观看相关欧美综艺资源，请持续关注CPP阳光影视!