If you go prepared.
Appropriate clothing, knife, lighting, a way to make a fire if needed, the firearm of your choice and extra ammo.
Sounds like they had none of the basics.
I carry those things when I go hiking or hunting, along with a space blanket and some parachute cord. What I don’t bother to take along is a cell phone.
Re: 111 - And carry a PLB. Those things are rugged and work.