On behalf of the Australian Maritime Safety Authority (AMSA), Constructions Pty Limited designed and constructed a navigation structure and helipad to service the structure, on top of the Island.
Atas Otoritas Keamanan Maritim Australia (AMSA), Canstruct Pty Ltd merancang dan membangun sebuah struktur navigasi dan helipad untuk melayani struktur itu, di atas pulau.