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Coastal Management

The City of Marion has a unique coastline characterised by high cliffs, small coves and rocky beaches.

The coastal area also has the significant cultural presence of the Tjilbruke Dreaming Trail, rare and threatened plant and animal species, beautiful intertidal and rocky reef environments and world-famous geological formations at Hallett Cove.

The Marion Coastal Walkway, and Hallett Cove and Marino Conservation Parks are well-loved recreational attractions.

Coastal Climate Change Planning

The 2014 Resilient South Regional Climate Change Adaptation Plan identified sea level rise and storm surge as hazards needing further investigation along the Marion coastline. Whilst City of Marion's exposure to coastal climate risks was generally seen as low, community engagement, collecting further data and planning for the future (30+years) were seen as priorities.

In November 2018, Council endorsed the City of Marion Coastal Climate Change Study - a comprehensive analysis of past conditions and future projections. This study highlighted areas where further monitoring of the coastline is required to better understand the impacts of climate change.

In July 2019, Council endorsed a Coastal Climate Change Monitoring Plan that highlights areas for future focus and proposes a 5-year monitoring program. Council has received funding form the State Government (Coast Protection Board) to progress this plan. The focus of the monitoring work includes:

  • Visual monitoring of coastal land forms
  • Detailed modelling of sea and wave conditions and their impacts along our coast
  • Investigation of 'hot spot' areas following storm surge events
  • Photo-point monitoring
  • Engagement of community and residents in reporting and detecting change
  • Annual reporting on coastal risk

Council's approach to coastal monitoring and planning aims to promote awareness of coastal hazards and risks and supports collaborative decision making around management options.

We are working collaboratively with other councils in Resilient South, the Metropolitan Seaside Councils' Committee, the South Australian Coastal Councils' Alliance and the Coast Protection Board to ensure City of Marion is a leader in supporting our community to understand and respond to coastal climate change.

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