'30 Viet Cong tunnels'

Using a special detector, Australian troops found more than 30 Viet Cong tunnels and underground hides in an area about 4 kilometres south of the Task Force base at Nui Dat. The detector, a radar screen, was pulled over the ground and 'tunnel rats' from the Ist Field Squadron Royal Australian Engineers, had the unenviable job of exploring the subterranean chambers. Twenty-five tunnels were blown up during the sweep on 14 August, 1968.