1.First of all,you need a first aid kit.This is a very important item that you should bring for every journey because when you or someone are hurt,you can use the first aid kit to treat the injuries.

2.Second,you must bring a tent to stay.When you are at the island,there may be animals or insects that will bother you or even attack you. In those problem,many people decide to stay on the tree.But,it may be cold at night.So,a tent would be useful for you.

3.Thirdly,you will need a lighter.A lighter not only make fire for us to see,but also help us in cooking and warming us in low temperature.

4.Finally,bringing a knife will a great choice.On the island,there may be dangerous animals or something...Your knife will help you to defence yourself.