Darrel Sumner spoke about how changes to the system impacted on Ngarrindjeri culture and connectedness in particular the impact of the barrages on water depth, water quality and fish resources overtime.
The tour then headed out to Hindmarsh Island where we stopped at Sugars Beach. This position offers an excellent view of the Murray Mouth. There we learned about the history of the Murray Mouth and how it has moved over the centuries. We observed and discussed the operation of sand dredging barges to ensure the Murray Mouth remains open. During the millennium drought, low flows and the closure of the river mouth resulted in significant environmental issues associated with water availability, water quality and acid sulphate soils. Sand dredging of the river mouth was implemented to reduce the impact of these disastrous outcomes. Dredging continues to be undertaken as required.
Darrell reflected on the significant number of Aboriginal burial sites that exist in the vicinity of Sugars Beach and that because of this it is an especially important place.