What might the following refer to whale road sea paths bright beacon and high arch?

The references are to features of the Australian coastline.

Whale road refers to the migration route of humpback whales along the eastern coast of Australia.

Sea paths refers to the shipping routes that pass through the Australian waters.

Bright beacon refers to the prominent lighthouses that mark the Australian coastline, such as the Cape Byron Lighthouse.

High arch refers to the natural rock formations along the Australian coastline, such as the Twelve Apostles.