1. School of Population Health, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
2. College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia
3. Surf Life Saving Great Britain, Buckland House, Park 5, Harrier Way, Sowton, Exeter EX2 7HU, UK
4. International Life Saving Federation—Rescue Commission, 3010 Leuven, Belgium
5. School of Education, University of Southern Queensland, Toowoomba, QLD 4350, Australia
6. Department of Information Systems, University of the Western Cape, Bellville 7535, South Africa
7. Drowning Prevention Committee, Lifesaving South Africa, Durban 4001, South Africa
8. Division of Emergency Medicine, University of Cape Town, Cape Town 7700, South Africa