Operation Posidonia will use recent innovations in seagrass restoration to revegetate Posidonia australis in boat mooring scars in Port Stephens, where environmentally friendly moorings have recently been installed. Donor seagrass shoots will be collected by 'citizen scientists' following large storms, which result in detached seagrass being washed-up along beaches. This will avoid exacerbating damage to existing P. australis meadows while also engaging local communities in restoration. A science communication campaign will raise awareness about the importance of seagrass meadows and the benefits of environmentally friendly moorings. Project knowledge will be transferred to volunteer groups to facilitate P. australis restoration in other NSW estuaries.