Changes to SA’s marine parks
The South Australian Government is committed to protecting our state’s marine environments while also supporting the communities that depend on this resource.
Changes to the Southern Kangaroo Island Marine Park
The Southern Kangaroo Island Marine Park Management Plan has been amended to expand the boundaries of the Seal Bay Sanctuary Zone to balance access to important high-value fishing areas whilst also addressing environmental concerns of the conservation and scientific communities.
The changes came into operation on 23 December 2025 following authorisation by Her Excellency, The Governor of South Australia in accordance with the requirements of the Marine Parks Act 2007.
The environmental, economic and social impact statement associated with the changes is available here.
The amendment is summarised below.
| Marine Park | Sanctuary Zone | Proposed amendment | More information |
| Southern Kangaroo Island Marine Park | Seal Bay Sanctuary Zone | The western boundary has been extended approximately 200m to the west, and the eastern boundary approximately 500m to the west, also extending the outer boundary of the marine park. A Special Purpose Area (Shore-based recreational line fishing allowed) is allocated along the western extension to allow for shored-based recreational line fishing. | Southern Kangaroo Island Marine Park Management Plan Amendment 2025. |
For more information, please email us at DEWProtectedAreaManagement@sa.gov.au.