Write an article based on this "Head outside the shrine and call Agro with X. Take out your sword with O and turn left. Ride towards the area where the beams centralized. Pass through the small path near the ravine. Dismount Agro and dive into the water. Swim your way to the collapsed wall. Go forward and up the set of stairs. Go through the small hole in the fence that surrounds the area you're standing on. Take out your bow and fire an arrow at the colossus."

Article:
When she’s beside you, mount her by pressing ∆. The beams should centralize on the east side of the shrine. You'll notice there's a ravine and a small path beside it (near the place you entered through while going to the fourth colossus). Keep going forward, through the winding path, until you see another path between the mountains. Enter and walk through this path until you see some ruins.  Press R1 to dive underwater and go through it. Go towards the wall and scale it by pressing ∆. Press R1 to grab on the ledge. A cutscene will play showing you the fifth colossus.  This will cause Avion to fly up to the skies. Prepare for battle!