Grand Canyon NP: A PSAR ranger explains the necessity of planning a trip if hiking the Grand Canyon due to the extreme heat patrons can face. An example of a feasible day trip is given. A trip that could potentially end in turmoil is discussed as well.
資訊
- 節目
- 發佈時間2013年3月14日 下午4:23 [UTC]
- 長度6 分鐘
- 年齡分級兒少適宜