On Nyoongar country, in the south-west of Western Australia, people say the rising seas are spirits which have been trapped under the sea finally returning to the land through whales.
After many years swimming around the ocean Mamong the whale beaches itself to return the spirit back into the land where it belongs.
The Nyoongar men knew the whales were coming and prepared a ceremonial knife called a Daap.
When the whale washes ashore, the Daap is used to cut open the whale and when the blood from the whale runs into the land, the people are satisfied that the spirit has returned.