1. Knife- make shelter,get food
2. Mirror-signal boats and planes
3. Enough Fresh water to last until I set up a water restractor
4. Large spool of braided string- use in fishing,making shelter,traps,fire starter and lots of other things
5. 25'x25' sheet of heavy black plastic- can be used for water proof shelter,to extract water from the air,
6. My Best Friend on here- to keep me company and to keep me warm at nights.
With this list as long as there is vegetation we could survive for years.
I'm a Search and Rescue Tech.