Nick Hunter is chief executive and co-founder of advertising agency Paper Moose. He lives in Sydney.

How long have you been scuba diving?
Since I was 12, so for 23 years now. Dad was a diver, and we had a family holiday booked to Heron Island on the Great Barrier Reef, so I trained for open-water diving before that trip. The waters there are famous for coral gardens and pinnacles teeming with fish, turtles, manta rays and reef sharks. That trip really kick-started my appreciation of the natural world, and today I work for clients in the for-purpose sector, primarily in sustainability and decarbonisation.