When Robert Smith as Senior Advisor Marine Geophysicist at SOPAC began his exploration of the Monasavu Hydro to determine the amount of sedimentation in the lake, as part of a survey that he began in 1991, in reviewing the data collected with state of the art mapping tools he found more than sedimentation, he discovered a Fijian ring ditch. The use of the Fijian ring ditch was used for fortification, found all over the country and dates back hundreds and hundreds of years. |