Snowpeak Ruins

Early Heart Piece 1

Originally discovered by Paraxade

Target a keese with the gale boomerang to bring it to Link. Turn into a wolf and use a Dark Energy Attack to target the keese. Wait until it returns to its platform and release the attack to jump up to the platform. Then use a Long Jump Attack to reach the Heart Piece. You want to be standing at the top of the stairs and slightly away from the wall as shown in the video

Early Heart Piece 2

Originally discovered by ZFG

Simply long jump to the chest. To get out, clawshot through the ceiling.

Consistent Double LJA to Small Key

Originally discovered by Dragonbane

After entering the room on the first floor, roll to the right side in front of the Ice wall.
Target the window across the room, then the top of the pillar slightly to the right and then do the final target far to the right (over the fence).
Jump as soon as the boomerang goes out of bounds both times.

Cannon Room Ice Wall Clip

DISCOVERED BY MRMRMEN, IMPROVED BY EKKE

Get Past the Ice Wall

The Floor clip to get to Darkhammer early is fixed in TPHD. However you can still pass the ice wall without the B&C.
Jump onto the cage, L-target the freezard in the upper cage and sidehop in front of the icewall.

Freezard Skip (early Ball and Chain)

As Wolf Link, get into the corner to the left of the freezard and wait for him to be fully turned. Now dash around him and hit him right next to the doorframe.
Break out of the ice and jump inbetween door and freezard while still being invincible.
Backwalk after transforming till you can open the door.

There is a faster method to skip the Freezard which was found by Venick that saves about 3,5 seconds. To do it, simply run into the wall on the right of the Freezard and hit him there.
Alternatively just B-attack against the wall. Break out of the ice and B-Attack between the Freezard and the doorframe.
Backwalk after transforming till you can open the door.

Bomb Boost to Second Floor

Discovered by Jiano, SexyZora19

Aim towards the ice wall and pull out a bomb and put on the Iron Boots for timing purposes, wait until the 4th flash starts then take off the Iron Boots and hold forward. The bomb boost should cause you to land on top of the wall. Once you reach the upper ledge, aim the Gale Boomerang at the cannon and use a Long Jump to get to the opposite side of the courtyard.

Get to Second Floor with Ball and Chain

Discovered by DF6780

With precise positioning, you can break some ice from the first floor and clawshot up to get to the second floor.

LJAs to Boss Key Room

After performing the bomb boost in All Dungeons you will want to head over to the boss key. To start this you can use a LJA on the very edge to get over to the middle platform by targeting above the door frame.

From the Middle Platform it is possible to LJA onto a broken pillar and then jump over to the platform with the door to the boss key room, this skips having to bring a cannonball and destroying the Freezard. It is possible to get knocked down by the Freezard at the end when climbing up, if you think this will happen just wait until his cycle ends then climb up. (If you grab two-handed you can climb up early)

Boss Key Room with Bomb Arrows

Discovered by DF6780

Using 4 bombarrows the room can be cleared quicker than with ball and chain.

Faster Heart Container

Discovered by SVA161620

You can collect the heart container with the ball & chain while it is floating down. After doing the gainer (1 frame backflip during CS), just hold left and mash ball & chain.