Those going for trips and hikes are advised by Search and Rescue Services to notify a trusted contact of their planned return time, then notify them of your return. They can tell them to contact the police for search and rescue if you have not returned by a specific time frame (e.g. 12 hours of your scheduled return time).
Survival situations can often be resolved by finding a way to safety, or a more suitable location to wait for rescue. Types of navigation include:
Celestial navigation, using the sun and the night sky to locate the cardinal directions and to maintain course of travel
Using a map, compass or GPS receiver
Natural navigation, using the condition of surrounding natural objects (i.e. moss on a tree, snow on a hill, direction of running water, etc.)