This page offers a guide on grabbing the Secret Shine Sprite in any regular Episode of Noki Bay. This area is accessed by looking into the sun near the Shine Gate once you’ve collected 20 Shines back in Delfino Plaza.
Spray the Golden Bird
The first Secret Shine in Noki Bay is a rather simple one and you can collect it on any Episode that’s not featured on the sea floor. Once you’re in one of these Episodes, make your way forward to the ruins straight in front of where the Episode begins and start scaling it to reach the top.
Once you reach the top, look carefully to spot a small Golden Bird that flies around the top here. Press the Right Stick button and then carefully take aim at it, splashing it a few times with FLUDD to cause it to drop the secret Shine Sprite.