Thank you very much for your answer ! I’ll start with that thanks to you ! As it is still winter here, I did not photogram wreck yet (because of the weather and my physical condition). No scuba for me, too easy 
I hope to do it while freediving. I started photogrammetry 1 month ago with dry training. Table d'orientation du Plateau de la Garoupe à antibes - YouTube Ancre du petit jardin de la Chapelle de la Garoupe à Antibes - YouTube