Instructions
Obtaining the Compass and Map
Head straight from the entrance through the eastern corridor until you reach water.
Sink until you reach the bottom and pull the block until it covers the green square. Float back to the surface.
Follow the corridor back to the entrance room and enter the water just to the left of the corridor. You will land on a platform.
Follow the path from where you land until you reach an area with spikes. Use your grappling hook to defeat the Stingers in this area.
Fire your grappling hook at the bull's eye target to reach the platform above the spikes. Then, turn around and fire your grappling hook at a second bull's eye target above your head to reach a new room.
Walk over to the geyser and use your grappling hook to strike the crystal switch across the room. This will temporarily stop the geyser and reveal a treasure chest. Open the treasure chest to obtain the compass.
Fall down the hole in the center of the room and jump off the platform past the spikes. Follow the path to return back to the entrance room.
Jump into the water and run into the corridor with the two unlit torches at the entrance after you sink to the bottom.
Follow the corridor until you meet Princess Ruto. Float to the surface after speaking with her.
Go through the door and defeat the Spikes by running your shield into them and then firing at them with your grappling hook. A chest will appear after defeating them. Open the chest to obtain the map.
Exit the room and cast Farore's Wind. This will allow you to come back to this room later on.
Obtaining the First Four Small Keys
Use your ocarina to play "Zelda's Lullaby" in front of the Triforce picture. This will drain the water in some areas of the Water Temple.
Drop down the hole in the center of the room. You will land next to a lit torch.
Use your bow and arrow to light the two unlit torches at either side of the room. Do this by firing at the unlit torches so that your arrow goes through the flame of the lit torch before hitting the unlit torches. This will unlock the door.
Go through the unlocked door and defeat the Shell Blades by firing your grappling hook at them after they open their shells. Defeating them reveals a treasure chest. Open the chest to obtain a small key.
Go back through the door you came in and follow the corridor back into the entrance room.
Head to the west part of the room and jump up onto the ledge with a block on it. Push the block until it falls down a hole in the ground.
Fire your grappling hook at the crystal switch to activate a geyser. Jump onto the geyser to get on the other side of the room. Go through the door on the other side.
Jump into the water on the east side of the room and sink to the bottom. Use your grappling hook to strike the crystal switch inside the statue's mouth. This will raise the water level. Then, fire your grappling hook at the bull's eye target just to the side of the statue to enter the small corridor.
Swim down the corridor until you reach a room with crystal switch and a treasure chest. Open the chest to obtain another small key.
Strike the crystal switch with your sword to raise the water level again.
Swim back through the corridor and exit through the door you came in. Fire your grappling hook at the bull's eye target to get back across the dead end.
Jump into the water and follow the path to another dead end. Fire your grappling hook at the bull's eye target above your head to get back to the entrance room.
Fire your grappling hook at the bull's eye target to reach the ledge above your head.
Use one of your small keys to unlock the door at the center of the room and enter it.
Use your ocarina to play "Zelda's Lullaby" next to the Triforce picture. This will raise the water level.
Sink to the bottom of the room and fall down the hole. Follow the path until you reach a crystal switch. Strike the switch with your sword to unlock a gate above your head.
Defeat the Spikes that come out of the gate and swim through it. Follow the gate's path until you reach a treasure chest. Open it to receive another small key.
Swim back to the room with where you raised the water level and go through the northern door back to the entrance room.
Sink to the bottom of the room and follow the path where the two unlit torches are.
Follow the path until you reach and opening and swim to the surface. You will see a crack in a wall. Use a bomb to break the wall and reveal a room.
Enter the room to find a treasure chest. Open it to obtain another small key.
Obtaining the Long Shot
Go back to the entrance room, swim to the surface, and use a small key to go through the western door.
Stand on top of the geyser and use your grappling hook to strike the crystal switch. The geyser will rise and take you to a higher floor.
Go through the door on the higher floor and use your ocarina to play "Zelda's Lullaby" next to the Triforce picture. This will raise the water level again.
Jump into the water and use a small key to enter the locked room on the west side.
Use your grappling hook on the bull's eye target to reach the other side of the room. Use a small key to enter the locked room on the other side.
Use the grappling hook to strike the crystal switch. This will raise the statues and reveal numerous bull's eye targets.
Use the grappling hook on the bulls-eye targets to reach the other side of the room. Then, strike the crystal switch with your grappling hook to lower the statues, climb on top of the one next to you and strike the crystal switch again to reach a platform.
Follow the platform to a row of spikes. Use the grappling hook on the bull's eye target above your head to get past the spikes. Go through the door on the other side. You will encounter the mini-boss, Dark Link.
Defeat Dark Link by approaching him until he does a back flip, then cast Din's Fire. Repeat this until he is defeated.
Go through the north door and open the treasure chest. You will obtain the Long Shot.
Obtaining the Fifth and Sixth Small Keys
Stand behind the treasure chest and use your ocarina to play the "Song of Time." This will create a hole in the ground.
Fall down the hole and follow the path until you reach a platform. Use your bow and arrow to shoot the eye symbol on the wall. This will unlock a gate to your left.
Enter the area past the gate and open the treasure chest to obtain another small key.
Cast Farore's Wind to return the warp point.
Play "Zelda's Lullaby" in front of the Triforce picture to lower the water level.
Fall down the hole at the center of the room and follow the path to the entrance room.
Enter the door in the middle of the room and use the grappling hook to reach the Triforce picture. Use your ocarina to play "Zelda's Lullaby," which raises the water level.
Swim to the other side of the room and go through the door.
Walk to the south section of the platform and use your bow and arrow to shoot the eye symbol below the gate. This will open the gate.
Use your grappling hook to shoot the bull's eye target beyond the gate. This will take you inside a corridor.
Follow the corridor until you reach a large block. Push the block until you can move east.
Follow the past east until you reach a treasure chest. Open it to obtain another small key.
Obtaining the Boss Key
Travel back to the block and head west until you reach a dead end.
Use the grappling hook to shoot the bull's eye target above your head. This will take you to another path.
Follow the path to the entrance room and jump into the water.
Go through the west door and stand on the geyser. Use your grappling hook to strike the crystal switch. This will take you to a higher room.
Go through the door and use your ocarina to play "Zelda's Lullaby" next to the Triforce picture. This will raise the water.
Jump into the water and sink to the bottom. Head into the north room and follow the path until you reach a dead end.
Use your grappling hook on the bull's eye target above your head to reach a locked door. Use a small key to enter the room.
Swim across the room and go through the door on the other side.
Use two bombs to break the light-colored wall to reveal a path. Enter the path and push the large block into the main room. Then, push the block into the water. It will land on a switch that raises the water level.
Go through the west door after the water has stopped rising.
Hit the crystal switch to make three geysers rise. Jump onto them to reach the other side of the room.
Go through the door and follow the path to a locked door. Use a small key to enter the room and open the treasure chest inside to obtain the boss key.
Reaching Morpha
Go back to the entrance room and go through the north door.
Follow the path to a locked door. Use the boss key to reach the boss Morpha.
Defeat Morpha by using your grappling hook to shoot at the amoebas within her tentacles. This will drag them toward you. Strike the amoebas with your sword. Repeat this process until Morpha is defeated.
Enter the glowing portal that appears after defeating Morpha. This will lead you outside of the Water Temple.