After revealing the impostor in the Anouki village, the chief lets you go to the Temple of Ice.
Temple of Ice 1F
Hit the crystal switch and go north across the red tiles, then use the boomerang to hit the crystal switch again so you can go past the blue tiles. Go east from there. The path to the stairs is blocked, so go south across the bridge, avoiding the spinning blade traps. Then go to the left and step on the switch to open the door back to the entrance. Then go east and stand north of the blue tiles, and use a Bombchu to hit the crystal switch near the entrance. Then you can go north and up the stairs.
There is just a straightforward hallway here, so go north and up the stairs.
Temple of Ice 3F
Go south and stand on the wooden pole, then use the boomerang to hit the crystal switch to the north. The ice up above will melt. Go north and then west across the bridge that you can now reach.
After you cross the bridge, go northeast and open the chest to get a big green rupee.
The Stag Beetles in this room can only be damaged if you hit their backs.
Go all the way south to find a sign. Jump over the gap to reach the sign. The sign says that you have to pull the four levers in the correct order. Follow the instructions on the sign to find out which lever is the fourth.
Now go to the southwest corner of the room. It tells you which lever to pull first.
Then go to the northwest corner of the room to find out which lever to pull second.
Based on the signs, the order to pull the levers is...
If you did it correctly, the door to the south will open. Go up the stairs that the door was blocking, then go north across the ice bridge. Try to kill the Ice Bubble and Ice Keese from a distance.
Go west past the locked door. Ignore the crystal switches and go south down the ice bridge, then throw a bomb down at the crystal switch on the left. When the blue blocks go down, fall off the north side of the ledge and go west, then north to open the chest. You will get a Wisdom Gem.
Go west, then go up to the icy upper area and go west across the blue bridge that you couldn't reach before because of the blue blocks. At the end of the bridge, read the sign, and make a note of the numbers. Then stand on the blue tile and use the boomerang to hit the crystal switches in the order of the numbers on the sign. A small key will appear nearby. Use the boomerang to get it.
Then go east and north to the locked door. Open it and go through.
Temple of Ice 2F
You will have to kill two Yooks. After they are gone, open the chest to get the Grappling Hook. Use it on the wooden post in the northwest of the room, then go south from there and go down the stairs.
Temple of Ice 1F, part 2
Use the grappling hook on the Stag Beetles in this room to pull their masks off, making them vulnerable to your sword. Then use the grappling hook on the middle tongue. The ice to the south will melt. Use the grappling hook there to go to the south side of the room. Go southeast to step on the switch. Then go east and use the grappling hook on the two tongue statues in the middle to get rid of the ice to the west. Go west and down the stairs.
Temple of Ice B1
Bomb the cracked wall and go through, then step on the switch. Use the grappling hook on the chest that appeared to the east, and open it to get a big red rupee. Step on the nearby switch to extend a bridge back to the other side.
Go east and break the pots, then put a bomb on the blue tile. Go through, and use the grappling hook on the wooden pole to the left, then on the wooden pole west of there. Tap the first wooden pole, then go to the middle of the tightrope. Use the boomerang to hit the four crystal switches to the north. The ice will melt. Then shoot the eye switch with an arrow.
Go east from the tightrope, then make a new tightrope to the east of the statue. Go east across it, then use the grappling hook on the switch in the wall to the north. This makes a chest appear to the southeast.
Go northeast, using the grappling hook on the Stag Beetles or just knocking them off of the edge. In the northeast, stand just above the short wall that is south of the tongue. Then use the grappling hook on the tongue, and don't let go. You will pull the tongue far down, and the ice to the south will melt. It will reappear after a short time, so carefully go south to where the ice melted, and jump off of the ledge that the ice had been blocking. Then go east and open the chest to get a key.
Push up on the block to the north until you can step on the switch to the right. After you step on the switch, go west across the new bridge. Then go north and unlock the door. Open the chest to get a Wisdom Gem.
Go south so that you are standing just below the two blue tiles, then use the boomerang to hit the crystal switch.
Go south, then west to the wooden pole, make a tightrope, and go across. Then go west and make another tightrope and go across.
If there isn't a hole in the wall to the south, put a bomb on the pale tile, then go through the hole. Go west, then north to a tongue statue. Go all the way south from the statue, then use the grappling hook on the tongue and don't let go. After countdown starts, go east across the bridge and north through the hole.
To the northwest, there is a wooden pole next to the red blocks that you lowered with the crystal switch to the northeast. Use the grappling hook on that wooden pole, then use the hook on the pole to the north, then use the hook on the pole to the northeast, then use the hook on the pole to the east. If you did it in time, you can go through the door before it closes. After you go through, that door will permanently stay open.
Go east and down the stairs.
Temple of Ice B2
Go west, then north, and use the grappling hook on the torch across the gap. Go east from there, and you will have to fight a Yook and a Gel. After that, the ice melts to the north.
Go north and use the grappling hook on the two wooden posts to the north to make a tightrope. Go north, being careful to avoid the spinning blade trap.
In the middle, use the grappling hook to make a tightrope between the wooden pole that you were just standing on and the one north of there. Cross it and go north. The statue gives you a clue about what to do next.
Go west and make a rope between the two poles. Then stand on the left side of the rope and walk toward the rope until it won't stretch any more. Then let go and you will be launched to the left.
Go south. You can kill the Ice Bubble instantly with the grappling hook. Go up the stairs and use the boomerang or do a spin attack to hit the four crystal switches.
Bomb the wall to the south to open a hole. Go south and get the red rupee (it's not a Rupee Like) and keep going south to go down to the torch. Use the grappling hook on the southern torch to go across the gap. Then go east and through the door that opened.
Go east and put a tightrope between the two torches. Approach the rope from the north so that it launches you to the north. Then use the grappling hook on the torch to the east, then on the torch to the north. Before you jump down, shoot the eye switch in the north wall. Then jump down and go northeast and step on the switch to extend a bridge to the south. Then go west and go through the door that opened.
In this room, the two eye switches will close if Link is looking at them, and they will open if Link is looking away. Jump to the thin ledge in the middle of this area, and walk to the light tile on the north end of the ledge. Make a tightrope between the two wooden poles, then shoot arrows at the rope to make them bounce off and hit the eyes while they are open. A chest will appear to the west. Jump west across the gap and open the chest to get a small key.
Go south to the previous area, then east to the bridge (step on the switch if there is no bridge). Cross the bridge, then go south and east to the locked door. Open it and go through.
Go east and you will have to fight a Yook and two Ice Keese. After they are gone, a treasure chest appears, and a door to the south opens. Leave this area and go east to the new area. Use the grappling hook on the wooden pole to the south. Stand on the pole, then use the grappling hook on the pole to the north. Stand on that pole, then use the hook on the pole to the east. Step on the switch to melt the ice to the west.
Jump down to the north and then go west, then south. Carefully go west across the narrow ice bridge. Step on the switch to melt the ice to the west.
Go partway across the bridge, then use the grappling hook on a torch to the north. Go west past the stairs and open the big treasure chest to get the Boss Key. Go east and up the stairs, then go west and use the Boss Key on the Boss Door. Read the sign to the north to make a blue light appear. Then go upstairs.
One of the heads will go up higher. That one is about to spit a fireball. Use the grappling hook to make a diagonal rope, starting with the pole nearest to the head that is about to spit the fireball, and ending with the pole farthest away from the head that is about to spit. If you do it correctly, the fireball will bounce and hit the head that did not spit the fireball.
Then keep an eye on the heads, because one will come down to bite the rope. Get away from that head so that it can't bite you. The heads might bite more than once, so be careful.
The heads might create a wave of water that washes over the platform that you are standing on. Make a tightrope between the poles if you can, then jump up onto a pole to avoid the water. Ice chunks will flow past the poles, knocking you off. If you made a tightrope, walk on it to avoid the ice, or just get in the water and walk away from the ice chunks.
When both of the heads' masks are gone, they will bite away the two wooden poles at the north side of the platform. Then one of them will try to bite you, then it will stick out its tongue while taking a deep breath before shooting flames or ice. Use the grappling hook to make a tightrope between the dragon's tongue and a wooden pole, then hit the dragon's head with the sword repeatedly. Keep doing this until Gleeok is defeated.
Open the chest to get a Heart Container, then go north and tap the door, then go through. Go north to get the Azurine. Then step into the blue light to the north to leave the temple.
Get Some Treasure
Outside, you can talk to the real Aroo. Then you can stand on the wooden pole and use the grappling hook to go up. Explore the ledges to get some treasure.
You can also get treasure in the Anouki village (both estates and Island Chief area) using the grappling hook.