Desert island camera

In response to Desert Island Cameras No. 08 - Medium Format Edition:

I'm assuming this desert island has a fully supplied darkroom, but no computers, so the basic premise (film) is a good one. I'm also assuming that by some quirk of the supply chain batteries cannot be delivered, so fully manual is required (sunny 16 would almost always work). The island would have a lot of sand, so I don't want interchangeable lenses. Desert islands being on the small size, I'd want a wide-angle lens (I don't want to stand out in the water to photograph the palm trees and get eaten by sharks). So my camera would be . . . the Fuji GSW690III!