Complete the slide in the Statue of Apollo without dying
Chapter: 24 - The Shoulder of Apollo

After reconstructing the shoulder, you will be able to drop down a long slide. Upon entering it the game will autosave which makes it impossible for you to safely restart without voiding the trophy. You have to successfully navigate the entire thing without dying to unlock it. If by some chance you do die you must replay through Chapter 24 until you reach it, which luckily isn't very far from the beginning of Chapter Select.

The only real advice I can give is to prepare for it by watching the following video several times. Once you feel like you know the route you want to take, go and try it. The "tricky" part is when the camera shifts from being at your back, to a view from your front that starts at 31 seconds in the video. It is easy to not realize that the floor is missing sections ahead of you so be sure to avoid them.