L-R -Back: F. Potgieter -Meteorologist, S Pretorius -Radio Operator; -Middle A. de Villiers -Biologist, D. Taljaard -Meteorologist, V. Smith -Biologist, F. Krynauw -Meteorologist, D. Gerneke -Biologist; -Front J. Coetzee -Radio Technician, H. Tiggelman -Senior Meteorologist, J. Grobbelaar -Biologist Leader, J. Langford -Leader/Medic, L. Heinonen -Ionosphericist.