It wasn't easy.
The sun was coming up. The water was freezing. Eden had already been on set multiple times, hanging from ropes upside down under falling rain. A suspended reflection shot was still stuck in my head, and she went back one more time to make it come to life.
Model: Eden Muse [link]
Shot in pre-dawn twilight, with lights juiced to max. Single exposure. 100% through the lens. No post-production or editing.