20260810 16590500 1.0 TRUE TOPO1M_Marine_Hazard_Pts All features have been derived or generalised from the 1 Million data capture. Rock Offshore - A rock located offshore that represents a hazard to shipping. Wreck - A disabled vessel, either submerged or visible, which is attached to, or foul of, the bottom or cast up on the shore. Activated in a scale range between approximately 1:1 million and 1:300,000. © Commonwealth of Australia (Geoscience Australia) 2016. Creative Commons Attribution 4.0 International Licence.