Wednesday morning's physical training (PT) sessions at the Navy Dive School were always in the form of a fin or swim in Sydney harbour. As a Clearance Diver trainee we were only allowed to wear overalls for our water based training sessions regardless of the time of year (it was always good to tape up the nipples). When trainees from the Navy's Fleet were doing a Ships Diver course they were allowed to wear wetsuits.
This photo was from a misty winters morning when I was taking a Ships Diver course for morning PT. The guy sitting on the wharf had a medical certificate exempting him from the session so he was to sit and watch his course mates do it from the wharf. It was never a good feeling if you were unable to participate in PT and I think this guys body language shows just that.