6 in 1 Survival Whistle - Olive Drab
This is an essential camping, and survival multi-tool. It has a tool for many situations you may run into while camping. The compass can help you stay on track. The LED Light will let you look at things at night. If you need to find other people, or call for help to people nearby use the whistle. If you need help, and you are stranded you can signal a plane with the mirror. The magnifying glass is good for making fires in a pinch during the day.