A couple of weeks ago I nearly froze my toes off testing the waterproof Pentax Optio WPi, so this week I thought I'd have an easier time with its non-amphibious sibling the Optio S6. Unfortunately our wonderful British weather had other ideas. This time I froze the rest of my body, and wished that I was as waterproof as the WPi. Anyone who tells you we're having a mild dry winter is lying through their teeth. It's cold and wet out there, and has been all week.