Gasas Shrine is located at the western end of Tanagar Canyon, between the Gerudo Highlands and Tabantha Frontier.
Shrine Location
Gasas Shrine is located at -4155, 0097, 0040, at the western end of Tanagar Canyon.
Well-Timed Cuts
Shoot the rope that is holding the metal cube. You can break the barrels if you need arrows. Jump across the metal cube to reach the other side.
Then take the metal cube that you went across, and attach it to the upper edge of the other metal cube that is in front of the stairs in this part of the room. Attach it in such a way that you can use Ascend on the upper cube to reach the ledge up above.
In this area, attach the two metal slabs together end-to-end, then put them across the gap and walk across them to reach the next area. Then move your bridge onto the gap beneath the treasure chest on the rope. Shoot the rope and open the chest to get a Large Zonai Charge.
Then take the nearby metal cube from the corner and attach its edge to the edge of your bridge. Rotate it so that the metal cube is near you and the far end is under the other treasure chest that is hanging from a rope over the pit below. The metal cube will keep the bridge from falling into the pit (but don't stand on the end of the bridge, or it might fall). Shoot the rope, then use Ultrahand to pull the chest to you. Open it to get a small key.
Check on the nearby locked door to open it. The metal cubes are too large to go through the door, but you can turn the metal slabs at an angle to take them through. With the two metal slabs attached end-to-end, place them over the gap so that they are beneath the large orb. You can use Ultrahand on the orb to see if its shadow is over the metal bridge. Then shoot the rope, take the orb, and place it in the floor switch across the room. Then you can go through the door and check on the dragon ring to complete the shrine.