Treasure Island

Here is a map of a Treasure Island.

What are the co-ordinates of these objects?

Write down what you can see at the co-ordinates given below:

1. ($7, 5$)
2. ($9, 5$)
3. ($5, 3$)
4. ($2, 3$)
5. ($7, 1$)
6. ($3, 3$)
7. ($4, 2$)
8. ($1, 1$)

The words can be used in a special way to find the coordinates of the buried treasure. Can you work out where it is?