The Crossrail archaeologists say the large network of timber pathways gave Bronze Age hunters easier access to the wildlife living on the area's lush wetlands.
After a hurricane, for example, large trees that are snapped or sheared often become pulp wood rather than saw-timber, reducing their value by two-thirds or more.
Sailfish on Fraser has large and comfortable self-contained two-bedroom apartments while Fraser Island Retreat has basic beds and amenities in simple timber cabins.