Water Temple

1. Follow Princess Ruto to the Triforce symbol, and play Zelda's lullaby to change the level of the water in the temple.
2. Shoot an arrow through the lit torch to light the two unlit torches. This will open the locked door.
3. Hit the switch in this room to make a geyser spring up, and then use it to cross the gap.
4. Use the Hookshot to lift to a platform with a Triforce symbol next to it. Play Zelda's Lullaby to change the water level.
5. Put on the Iron Boots and fall to the bottom of the area, and look for an opening to fall through.
6. Ride the fountain to another Triforce symbol that you can play Zelda's Lullaby next to to completely fill the water in the temple.
7. Use the Hookshot to climb the platforms that lead to the top of this waterfall. The platforms are slowly moving to the bottom of the waterfall, so be quick.
8. Defeat Dark Link by using the spin attack or Din's Fire. Do NOT Z-target him.
9. Play the Song of Time while standing on the blue block behind the Longshot.
10. Wear the Iron Boots here and drag the block out of the way.
11. Hit the diamond shaped switch with an arrow, then use the longshot to get into the hall behind it. Once inside, push the block to expose a hallway.
12. Use the longshot to get past the spiked opening, then once you are in the room with the stingers, bomb part of the wall there to get to a block that you can push onto a switch that will flood the room so you can proceed further.
13. After climbing the stairs, go right, sink down, and float above the big clam to get the Boss Key.
14. Use the Longshot to reach the room to Morpha.