Every year for the past 5 years the Glenelg Hopkins Catchment Management Authority pays Greenvale a visit to survey the health of the Hopkins. Every year they return to exactly the same position in the river to record such information as vegetation, number of weeds, errosion, river bank width and various other indicators to enable them to assess the health of the river system in general. Megan and Dion undertook the survey on what must have been one of the windest days on record.
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