Categoria: Origin of Perth colonization?

Origin of Perth colonization?

Could these strange sunken structures be the origin of Perth colonization? To see the scientific bathymetry with your own eyes, click the link below: https://emodnet.ec.europa.eu/geoviewer/?layers=12524:1:1,12522:1:1,8353:1:1,12769:1:1,12768:1:1,10367:1:1,12523:1:1,10133:1:1&basemap=ebwbl&active=undefined&bounds=115.06275415986872,-31.9672064706399,115.29728907470309,-31.81091093755105&filters= There is even a second…