When chasing Machi from mushroom to mushroom, if you roll into the wall at the bottom right side of the sand slope with the Deku Baba on it, you will knock a vine loose. After finishing talking to Machi you can use that vine to reach the Elder's platform more easily.
Hitting the Goddess Cube that is next to the Goron will cause Link to warp up to the ledge, skipping about a minute of Deep Woods. This only works in Hero Mode, as the upgraded Skyward Strike is required.
In order to hit the cube, you must lure the Bokoblin that patrols the area into the right position, so that when you attack it with a Skyward Strike, the strike will angle up and hit the cube. Z-target the Bokoblin and lure it to the section of the path that has a slight angle. Move Link to the right hand wall so that the Bokoblin is aligned with Link near the center of the path. Charge a Skyward Strike and use it when the Bokoblin goes to attack you. If the angle was correct, the strike will hit the cube and warp Link up to Gorko.
One setup for this trick is to get the Bokoblin's attention in the shadow below the arch. Then backflip three times and hold right until Link is touching the right hand wall. The Bokoblin should end up in the right position for the Skyward Strike to hit the cube.
Note: This only works on this particular Cube, as only this cube has a cutscene that moves Link's position.
Normally you are forced to hit the first goddess cube to reach Skyview Temple. However, you can skip that cube using a BiTWarp. Save at the Deep Woods statue and activate BiT. BiTWarp with the Lower Academy statue; the positioning here is important. One position that works is next to the statue on its left side. The BiTWarp will take you behind Skyview Temple, where the walls are not solid. Run over to the Skyview Temple door switch and shoot it with the slingshot to enter the temple.
This is used in Harp speedruns to skip a Fi dialogue about Goddess Cubes, saving about 5-10 seconds overall. It is slower in full game speedruns because it makes the second visit to Skyview Temple slower.
Note: This Goddess Cube unlocks all other cubes; if you skip it, you will be unable to get any other Goddess Cubes.
Lake Floria Early is a way to get out of bounds in Faron Woods and run to the loading zone for Floria Waterfall. While there are several ways to perform this trick (see Unused Strategies), the one used in current runs is the Fence Hop method.
Make your way to the fence on the right side of the gate leading to Lake Floria. At the third pillar from the far right side of the fence, you can climb onto the fence using a front hop jumpslash. You can then run back along the fence and jump to an OoB ledge. Now make your way to the Floria Waterfall back entrance.
This is the method is faster and more consistent than the other methods, and is thus the one used in the current routes.
Note: This route assumes you use an Air Potion for the Tadtones.
After defeating the five Bokoblins harassing Lopsa, if you roll into the tree as the first Lopsa cutscene triggers, it will knock him out of the tree immediately. Lopsa will then ask you to help him out of the tree while on the ground, where upon you can talk to him again to trigger the second conversation.
This roll is frame perfect, and saves at most one second, so it is usually not attempted.
It is possible to reach the Deep Woods without obtaining the slingshot. After Machi asks you to find the Kikwi Elder, run to the Viewing Platform. Lure the Bokoblin patrolling the lower level to the stairs (either side) and then push it up the stairs. By charging a Skyward Strike at the top of the stairs and hitting the Bokoblin at the right angle, you can hit the vine leading to the Deep Woods.
This trick is not used in speedruns because the Slingshot is required to finish Skyview Temple.
There are two goddess cubes on branches of the Great Tree that you can obtain on the first visit. Note that you must have hit the Goddess Cube next to Gorko first for any other cube to activate. For this reason, and the fact that getting the cubes later is easier and faster, these tricks are not used in 100% runs.
The first cube is on a branch near the grassy ledge where Erla hides. There are three Bokoblins in the area; if you lure one of them into the right position, you can Skyward Strike them and hit the cube on the branch, similar to the cube warp.
The second cube is on the branch with the clawshot target. There is a Bokoblin in the trees near the water; you can lure/push him over to the branch and use a Skyward Strike to hit that cube as well.
These are alternate ways of getting to Lake Floria early, which are either slower or less consistent than the one used, Fence Hop Method.
Make your way to the hole where Oolo was hidden on the first visit. Dash over the brick wall to the right of the tree. You'll be on a ledge near a tree; hop onto the tree branch, go into first person view, and walk to the far side of the branch. Align yourself with the far ledge, then perform an autojump toward the OoB ledge and do a jumpslash in midair. If you time the jumpslash correctly, you will end up OoB. Now make your way to the Floria Waterfall loading zone.
Grab the rope near the Sealed Grounds entrance and climb up 3-5 steps from the bottom. Aim between the tree and the ledge that the tree is connected to and start to swing the rope. When you've reached maximum speed, let go of the rope and you should grab the ledge. Climb up onto the ledge, turn around and hop onto the tree branch. Go into first person view and walk to the far side of the branch. Align yourself with the far ledge, then perform an autojump toward the OoB ledge and then do a jumpslash. If you time the jumpslash correctly, you will end up OoB. Now make your way to the Floria Waterfall loading zone.
On the second visit to Faron Woods, a Wooden Shield Moblin will be spawned close to the Floria Waterfall entrance. By luring the Moblin close to the ledge leading to Floria Waterfall, it is possible to sprint up his shield and jump off, allowing you to grab the ledge and then proceed to Floria Waterfall.