Erik and I are hiking the Grand Canyon this summer. We have reservations at the Phantom Ranch at the bottom of the canyon for June 14th. Totally stoked!
It's a good idea to occasionally review CPR procedures. The main thing to remember:
2 blows, 30 compressions
Blows - chin up, pinch nose, 2 blows, watch chest rise*
Compressions - middle of chest between armpits
* If chest does not rise, the airway is not open ... chin up