Kikakin Shrine is northwest of Korok Forest and southwest of Thyphlo Ruins Skyview Tower.
Shrine Location
Kikakin Shrine is located at -0397, 2738, 0287, southwest of Thyphlo Ruins Skyview Tower and northwest of Korok Forest.
Shining in Darkness
There is a lamp on the floor that you can pick up and carry with you to light the way. Go to the left side of the first room, then go along the left wall down the hallway. To the right, there is another hallway, but there are spikes on the left side. The spikes won't move, but you will take damage if you bump into them. On the right side of the hallway with the spikes, use Ultrahand to remove the metal cube from the wall, then use Ultrahand to pull the treasure chest out of the wall. Open it to get Amber.
Near where you got the treasure chest from behind the cube, there are spikes straight ahead. Turn left at those spikes, then turn right to go down another hallway. There are two walls of spikes closing and opening, so run past them and open the chest to get a Luminous Stone. Then run past the spikes again and go back the way you came until you can turn right.
You will be in a hallway that goes left and right. To the right, there is a single wall with spikes that closes and opens. Go past it and you find some stone tiles at the end. Use Ultrahand to lift the middle tile, and you will find a chest that contains a small key.
Go back down the hallway past the wall of spikes. If you look at the ceiling, you see a hole with a bright light. Use Ascend next to this hole to find a chest that contains a Zonaite Bow.
Go back down and go through the hallway with the two walls of spikes. To the left, you will see some laser beams shining. Carefully go past the laser beams, then look to the left to find a treasure chest. Open it to get an Opal.
Then go past the laser beams again, and turn right at every turning until you are back where you can see the entrance of the shrine. Go to the locked door on the left, and check on it to open it with the small key that you found. Go through and check on the dragon ring to get a Light of Blessing and complete the shrine.