This can be done during Chapter 6, either 6A or 6B.
When you are outside of the asylum (if exited through the door just before the wards), turn left and walk forwards towards a construction site.
You will see many sandbags in front of you, behind the big yellow tubes - go towards these. Turn right and you will walk onto a plank. Follow it to the left, and then continue straight.
The 'natural' path of the plank will again veer off to the left, BUT, continue straight and you will see a section with a bit of sun glare on the end. Walk towards this.
You do not need to jump/fall off, just stand on the end, Renee will say something, enjoy the view and the chirping birds, and the trophy will unlock.