Directly ahead of you, as you enter the fountain, lies a small dock. At the end of the dock, Jabu-Jabu. To your right, a tree in the water. Swim under the tree and you'll come to a small piece of land. Set a bomb by the boulder and the whole wall will crumble. Enter the tunnel to find the second Great Fairy! She will give you Farore's Wind. This warp magic can only be used in dungeons. Head back to Jabu-Jabu. While standing in front of him, take fish out of the bottle. Jabu-Jabu will inhale you and the fish!