The Last Guardian Guide Part 8: Hanging wind chimes and opening the draw bridge

Run past the guards in the ruins hall and jump to the platform on the far side of the room where they can't reach you. Push the chain and jump on it as it slides across the room. Climb up and jump on the ledge. Make your way to the stained glass and push it off to break is so that Trico may jump down and destroy the guards. Once the guards are destroyed, climb on his back and exit to the wind chime area.

Pull the lever to let Trico outside. In this area you'll see a bunch of hanging chains and wind chimes. You must climb and jump across these in order to reach the stained glass eye to destroy it. Once destroyed Trico will jump to the pillar. Jump down and land on Trico (yes, you can miss). From here, command Trico to leap from one pillar to the other until you arrive at a platform with a broken stained-glass eye on it. Push the eye off the ledge and call Trico. Jump on to his back and hold on.

Once Trico stops, you'll see a draw bridge. Climb down his tail and scale the wall. You'll briefly say goodbye to Trico. Run up the spiral staircase and past the suit of armor guard. Jump towards the middle to pull the lever and open the door, then jump back and run to the exit. You'll have to do this again in the next room but with more guards.

Once you arrive at the top, you'll find a bunch of wooden beams. Cross them and jump to the ledge. You'll miss but Trico will save you. Climb up Trico's back and jump into the draw bridge then pull the lever to open it and allow Trico to climb on.