Lift the rock here and procede through the cave. You will eventually be outside with some pools. You can fight a flower monster once you exit the cave and use Cyclone on the western bunch of leaves. Go to the southeastern pool. Try approach the Djinni, but it will run around the pool. Stand north of the pool and use Reveal. Jump across the platform. You will see that the Djinni is spinning. Go get the dizzy Djinni.

Go north and use the same method to get a treasure chest. Leave. Go all the way back to your ship.