Nightime simulation

Shooting for Exposure Marine at the RNLI Training College in Poole, Dorset, the brief was to simulate the experience of a man overboard situation on a dark, stormy night.  The pool there has a wave simulator and blinds that can achieve a complete blackout.  That would have presented a few problems for photography but we discovered that by leaving one blind open by a few inches we got a little light across the surface that did a great impression of moonlight.  The guy in the water is just visible which is the effect we were after for the 'before' image, the 'after' image showed the casualty illuminated by their amazing MOB light.