M195-26 Macquarie Harbour – Betsys Bay & Liberty Bay – Research Area Closed Mariners are advised that the research area previously declared in the vicinity of Betsys Bay and Liberty Bay, Macquarie Harbour, for the University of Tasmania’s Institute for Marine and Antarctic Studies endangered species rehabilitation project, is now closed. The research area was…

M186-26(T) Cape Sorell – Wave Rider Buoy Mariners are advised that the wave rider buoy located at Latitude 42° 11.940′ S, Longitude 145° 3.300′ E, is currently off station. A further notice will be issued once the buoy has been reinstated in position. Mariners are requested to navigate with caution in the area.

M176-26(T) Port of Devonport, Mersey River – Aid to Navigation Maintenance Mariners are advised that aid to navigation repair and maintenance works will be carried out in the Mersey River from Monday, 4 May to Wednesday, 10 June 2026. During this period, works will include the replacement of the Beacon No. 2 and Beacon No.…