"Losing faith in gelignite we finally came round to the possibility of diving and Graham Balcombe's engineering skill produced a snorkel-like device from a cycle frame, raspberry valve and a garden hose. Water pressure on the chest prevented the diver reaching the necessary depth and wetsuits were then unknown and Graham Balcombe was removed from the water too cold even to speak. I had a go with the outfit but the engineering skill which had constructed it failed to ensure that the garden hose remained attached, and I also had to be removed from the water, wet inside and out."
Jack Sheppard helping to invent cave diving in 1934. Thats the kind of thinking that has got this country where it is today.
From 'The Last Adventure'