GCNP: Water Temperature & Flow Variations এর ফ্রি ভিডিও দেখুন
অ্যানিমেশনের বিবরণ:
What you need to know to deal with cold Colorado River water, treating hypothermia, and how water level fluctuations will effect the way you camp by the river.
What you need to know to deal with cold Colorado River water, treating hypothermia, and how water level fluctuations will effect the way you camp by the river.