Walkthrough:The Legend of Zelda: Phantom Hourglass/VicGeorge2K9/Part 10

This part will take you through your third visit to the Temple of the Ocean King.

Return to Mercay Island
Once we're at Mercay Island Harbor, head back up through the same path as before to the Temple of the Ocean King. Now we can bomb the blocks that stood in our way, and that cracked wall reveals a cave entrance into which we can get ourselves a Power Gem (if we're collecting those things throughout the game).

Inside the Temple
We now have 12 minutes in the hourglass and three more floors we need to pass through to get what we need this time.

Floor 1
Just go straight up through the two Safe Zones to the door in the center of the floor.

Basement 1
Now that we have Bombs, we can get the small key much faster than before. From where we entered this floor, move right and then up and then to the left where we see blocks we can blow up. Use a Bomb to blow them up, then move left to press the floor button, opening up the same door as before to get the small key. Then just bring it to the locked door and open it. Simple as that.

Basement 2
Just go down until you see a switch orb on your left and hit it, causing the nearby Phantom to move south to investigate. While he's distracted, go up to the switch and pull it, then quickly hit the switch orb to the left of that switch. The switch you pulled will cause a wall of fire blocking access to the south part of the floor to go out, and the switch orb will cause a small key to drop into the room near the center. This time, though, go back to near the first switch orb we hit is: you'll see a crack in the wall that's south of us. Throw a Bomb at that part and go through the opening it makes. Stand on the floor button located at center east and use the Boomerang to snag the small key located in the center room. Then just go through the crack again and bring it to the locked door and open it.

Basement 3
Nothing's changed here: the same strategy you used the last time you were here still applies.

Checkpoint Chamber
The hourglass stops flowing again, so we get a bit of reprieve. This time we see a door that has the seal of the Spirit of Wisdom on it. Neri will give us the power to open this door so we can move on.