We are going to take a similar path this time. Go up the mountain and into the cave. Then grapple across the gap and go into the actual tribe location. Then head up the stairs to the left and go into the second room on your left. Go across the room and outside. Then grapple to your right. Now head up the ladder and you will meet Medli for the fourth time. Play the Earth God's Lyrics with the Wind Waker in front of her. Now she will understand the situation from the sage. You will now need to take her to Headstone Island to open the door to the Earth Temple. On the boat warp to Outset Island and head right one space from there.