Legends of the Wailuku by Charlotte Hapai — Read

Maui, the eldest son of the goddess Hina, lived with his mother and two brothers in the cave behind Rainbow Falls, in the Wailuku River Gorge, a short distance mauka of what is today the town of Hilo. Often the brothers would go fishing in the harbor.

At this time the Hawaiians knew nothing about fire. All their food was eaten raw. Occasionally Maui had found in his various wanderings some bits of cooked banana and pondered over their delicious flavor. He could not understand what had been done to them until one day he came upon a group of little alae birds cooking bananas over a fire.