The Legend of Zelda: Majora's Mask/Great Bay Temple

The Great Bay Temple is a mechanical construct meant to control the Ocean's temperature. It's currently warmer than usual, which is unhealthy to the Zora eggs in the Ocean, and needs to be resolved.

Walkthrough
The first room you will see is the waterwheel room. To get through the room, you need to turn on the yellow switch located under the water. This enables a water jet that you can use when you ride the eastern lift to the top.

The next room is the turbine room, which spins either clockwise or counterclockwise depending on the turn of the waterwheel. First, enter the south-east exit, and collect the map from the chest.

Enter the south-east tunnel, and reach the next room to collect the key. YOu may optionally get the compass as well from the same room. Enter the fast-moving water stream to return to the turbine.

Next, move to the north-west exit, and walk onto the red pipe exiting to the North. Collect as much magic power and arrows as you can to defeat the Wart. You first need to clear out the bubbles surrounding it with fire arrows, then hit it's eye when it's open. When it's low on health, it will release its protection, and begin to zip wildly around the room, but it still vulnerable to eye shots when it is open. If you need a safe area in the latter part of the fight, stand in one of the corners; you can also use the shield to block the fast moving attack.

Once defeated, you can get Ice Arrows, and freeze the octopods to the south. Climb to the central valve and turn it. Head to the south-east room again, and use ice arrows to build a path to the south door. Freeze the Blue Chuchu and climb to the red valve and open it. Return to the entrance room, hookshot the ceiling above the red water spout and turn the valve. This will stop the wheel; close the yellow valve to restart it.

Head to the north, and freeze the water flow blocking access to the ladder, Enter and use ice arrows to reach the green valve to open it.

Head north east from the turbine room, and surface to enter the first room. Freeze the floor to that room, and melt the ice on the door with a fire arrow. You will now fight a Mad Jelly and its Gekko assistant; to kill it, use Ice Arrows on both the frog and large jelly. It should not take more than 10 hits; on a successful blow, the frog either forms the jelly in a large blob, or your ice arrow breaks the jelly into small bits. Once defeated, you can exit to get the boss key.

Continue along the water route. Head up the lefts on the west, and jump onto the second lift. Freeze the ice channel above, and walk across the wheel to the next room.

Within the see-saw rooms, you need to stand on one side of the see-saw and either freeze or melt the water channels above. Go the far see-saw first, and use the two see-saws to reach and open the green valve. Head to the first one to return to the chamber south-west of the turbine.

Return to the turbine, and take the south exit. Open the final valve and enter the boss room,

Gyorg
Gyorg is a large pirhana.

Shoot an arrow at it's head to stun it. While it's stunned, dive and use the electrified ram to damage it.

When it is damaged, it will release piranhas into the water.

Stray Fairy locations

 * 1) Turtle room, light all four torches with deku stick or fire arrow.
 * 2) Water wheel room, below the first platform.
 * 3) Water wheel room, destroy the south-west skulltala.
 * 4) Central turbine, destroy western barrel as Goron.
 * 5) Central turbine, destroy urn below turbine.
 * 6) South east of central gear, break an urn
 * B1, Access tunnel between North-east and south-east chambers adjoining central gear shaft; kill all five Bio Deku Babas and open the chest.
 * 1) North east of central gear, shoot urn near dexihands (in fast current)
 * 2) North east room, after freezing water source, climb on central water wheel and hookshot northern chest.
 * 3) North east room, after freezing water source, climb on central water wheel, stand on edge of diagonal fin, and hookshot southern chest.
 * 4) East room, hook shot to chest just after turning on the green valve.
 * 5) East room, below first see-saw.  Ram the barrel as Zora.
 * 6) North room, make ice path to corner and hookshot to second floor.  Open the chest.
 * 7) Before boss room, in bubble under valve.
 * 8) Before boss room, in bubble within exit vent.

When you have all fifteen, return to Zora Cape and leap from the rocks to the south and use the hookshot to travel to the rest of the stray rocks. Blast the boulders with the bomb, and head inside to the fountain.

The Great Fairy of Courage will strengthen your defence, causing them to inflict only half as much damage.