Instruction in life-saving from a naval officer

Another recently scanned slide.

The label says

Instruction in life-saving from a naval officer

The first scout camp was held on Brownsea Island in 1907

...but I'm not certain that this picture is actually from that pioneering Scouting event, or a recreation.

The fact that the Naval Officer looks like Edward Smith counts in it's favour, but basically everyone in that era looked like him.

Bonus - Get Happy