If you were on a deserted island, what three things would you want there with you?

If I was on a deserted island, I would bring water, food, and my phone. I would bring water to stay hydrated and food for eating. I would call people to help me. I would use the food and water until they find me. I think those are the 3 main things you need to survive. Because if you didn't have a phone it would be hard to tell people that your stranded on a island. If you didn't have food, then it would be hard for you to eat. If you have no water, than you would die dehydrated. You can drink salt water,but it would make you thirstier and it's dirty. It will infect you. Those are the three things I would bring if I was on a deserted island.