Musanokir Shrine is located in front of the Great Deku Tree in Korok Forest, south of Thyphlo Ruins Skyview Tower.
Shrine Location
Musanokir Shrine is located at 0408, 2133, 0144, in front of the Great Deku Tree in Korok Forest. See Trail of the Master Sword for help reaching this area.
Swing to Hit
Go down into the pit and use Ultrahand to lift the metal ball on the chain. Attach the ball to the metal cube on the ledge up above. Then use Ascend on the slab, or climb the ladder and walk across the slab.
There is a metal ball hanging from a chain in front of a glowing target on the wall. Attach the metal cube to the bottom of the ball, then pull the cube up and back as far as it will go, then let go. It will swing and hit the target, activating it and opening the bars. Go through.
Take the metal cube from the previous area and attach it off-center to the top of the other metal cube, and place it near the ledge with the treasure chest. Ascend to the top of it, and glide from it to the chest. It contains a Large Zonai Charge.
Attach the log to the front of the stone on the rail so it is pointing at the wall target, then attach the metal cube to the bottom of the ball that hangs from the chain on the stone. Lift up and pull back on the metal cube, then drop it, and the stone will go up on the rail, making the log push straight into the wall target. This will activate it, opening the bars. Go through and check on the dragon ring to get a Light of Blessing and complete the shrine.