1.) Water is always a prioriety, you can only last three days without in extreme conditions.
2.) Shelter is your next prioriety, it protects you from the elements. Blocks sun, wind, sand, rain & snow. Can provide warmth or shade.
3.) Food, is last on the list in most cases. However situation dictates and the three priorieties are subject to change.
Always remain calm, relax soak in your surroundings and think rescue. How can I assist search and rescue in locating me? Build rock symbols, use wood, signal smoke fires. Locate anything that can be used as noise makers. If available use bright colors or dark smoke. Remember the law of averages, water leads to civilization. Follow the current on streams, creeks and rivers. You chances are greatly improved by traveling the shore line down stream. Alway tell someone where your going, point it out on a map to them and mark it so they don't forget. Give them you arrival and departure schedule. Include all routes and check in often. Always bring rope, survival bracelet, pocket knife and a fire striker. Carry plenty of water you can never have enough. So either on your vehicle, waist or back never forget the basics and bring them with you.
Following these simple preperations and prior planning ideas might just keep you alive and who ever went with you.
(In the picture included in the small survival tip is my daughter Mariah Shrigley. She lives survivalism, camping, hiking and fishing. She is the youngest survivalist in my organization and can give most adults a run for their money with her survival skills.)