Temple of Ice
1st Floor
Head north here and hit the switch to lower the red blocks. Stand between the red blocks and the blue blocks, then throw your boomerang back towards the switch to move on. You'll come to another group of raised red blocks. Head to the south here and press the switch to reveal the passage back to the entrance chamber. Move above the recessed blue blocks here, then send a bombchu back to the original switch. That'll drop the red blocks here and let you move on.
2nd Floor
Not much to see here. Head north and up the stairs.
3rd Floor
Head to the south here and hop onto the little peg in the ground. Fire an arrow at the switch to the north to drop the ice crystals that lead onward.
On the far side of the bridge, you'll spot four levers. If you look to the south and the southwestern and northwestern corners, you can find a few signs that will point you towards the sequence they need to be pulled in. The correct sequence, counting from the left, is 1, 4, 3, 2. Pull them in that order and a door will open to the south.
The steps here will lead you up to a number of platforms that are suspended above the room. Ignore the switches on them for now and follow the walkways to the southwestern corner of the room, near the only treasure chest in the area. Throw a bomb onto the switch to the west of you, then drop down to reach the chest, which contains a Wisdom Gem.
The Boomerang Puzzle
Head back to the steps where the door unlocked and go up to the middle platform in the room. The blue blocks on the western side of it should have receded, letting you move over to a platform to the west with a single sign on it and a blue tile. Read the sign, then stand on the tile and use your boomerang to hit the four switches here in the order it prescribes: northwest, northeast, southwest, southeast. If you do so, a Small Key will drop from the sky. Hit it with your boomerang to nab it, then take it to the remaining door here and head up.
2nd Floor
There's another combat room here, consisting of a couple of Yooks. Take down the white one first, as it's the easier, then dance outside of the range of the darker one until it breathes in. Bomb it to kill it, then grab the Grappling Hook from the chest that appears. Use it from your items list to grab onto the pole across the gap and move back upstairs.
1st Floor
The spider enemies here are vulnerable to your grappling hook; use it to pull their helmets off, then hit them with your sword. When you clear the enemies out, use the hook to pull the tongue down on the middle of the three statues, then move to the south. Flip the switch leading back to the entrance room, then grapple the tongues of both of the statues there to melt the ice preventing you from heading down.
B1 Floor
Bomb the wall here and flip the switch to reveal a treasure chest on the far side of the gap. Grapple to it, grab the 200 rupees inside, then flip the switch here to extend a bridge back to the other side. Head to the east here, smash the jars, then drop a bomb on the blue plate on the ground to move to the north.
You can make tightropes between two poles by selecting your grappling hook, aiming at the first pole, then aiming at the second, just like using a boomerang. Begin by making a tightrope to the east and heading over to the torches there. There'll be a switch across the gap to the north here; grapple it and pull it to reveal a chest in the southeastern corner of the map.
Move to the northeast until you encounter a locked door. There'll be another statue with a tongue to the right of it. Pull the tongue with your grappling hook, then quickly run to the south where the ice melted and get past it. If you made the treasure chest appear in this area, you can open it for the Small Key. Move up and flip the switch here, then head north into the locked room to find a Wisdom Gem. Stand outside of the room and flip the switch with a boomerang to drop the red blocks elsewhere on the level.
To The West!
Head back to the first couple of tightropes you made and head to the west. Extend a tightrope across the two poles that are directly to the south of the eye target with the icicles in front of it. If you stand in the middle of this tightrope and use your boomerang, you can hit all four targets to the north, thus melting the ice in front of the eye and letting you hit it with an arrow. That will melt the ice near the southwestern tongue statue. Find the blue panel near the westernmost pole here and bomb it; that'll give you a shortcut to reach the tongue.
Make your way to the tongue statue near where you first entered the floor. Stand to the south of it, near the southern wall, and pull the tongue through the gap. The farther away you stand from it, the farther you'll pull it, and the more time you'll have here. After it's fully extended, return to the poles on the western side of the main room here and make your way around to the door that opened up. That'll lead you to a set of steps heading downward.
