Aren't you concerned about the salt in the air affecting your camera? Years ago, I took a 35mm SLR to a beach in California to photograph surfers and I had to have it CLA'ed when I got home because all the moving parts felt sticky afterwards. I'd check into this first, after all, it is a Hasselblad and you don't want to ruin it just for one assignment.

Arigram - I was laughing over the sniper comment!