Here’s how to get the purple jewel on Nabooti Island. The purple jewel is at Blue Nile Falls. Once you climb up, you have to help the woman cross with her corn, chicken, and fox. You have to do this in a specific order and here is how:
- Take chicken
- Take corn and bring back chicken
- Take fox
- Take chicken again
Go to the cave on the right, and be sure to jump off each narrow rock as soon as you land on it. The purple jewel is at top right.