Both are handy,
Gps, waypoint when you get out of the car,
turn it off as you are hunting, not taking the gps for a walk, because all you will be doing is looking at the screen getting confused.
Should have seen all the old blokes with their new christmas presents walking around just looking at their gps screens at the holiday place i went to for chrissy.
Use the map and compas to navigate by.
then if you can't back track or navigate to your vehicle, turn the gps back on and go to.