مفت ویڈیو GCNP: Water Temperature & Flow Variations دیکھیں
اینیمیشن کی تفصیل:
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.