1)First aid
Bring First aid could help me if l am injured because the island has no hospital or doctor to help me bandage my wound at all
2) A lighter
At the deserted island i can use the lighter to keep myself warn by making fire with the woods
3) A windbreaker
the windbreaker could help me to keep out of the wind (also help to keep warm)
4) several bottles of water and kettle
I could boil the water from the river and pour it into my bottle thus when i go to find food i do not need to worry about the water as i will carry it along
5) tent
the tent could help me by preventing animals from attacking me or harm me.