At the shallow head of Akaroa harbour between Barry’s Bay and Duvauchelle lies the once fortified Ngāi Tahu pā, Ōnawe. The distinctive whale-shaped peninsula juts out into the water and was the site of a bloody massacre when it was invaded by the Ngāti Toa chief, Te Rauparaha in 1830. The Ngāi Tahu fighting chief Tāngatahara led the unsuccessful defence of Ōnawe but later helped to drive Te Rauparaha from the South Island.
There is public access to Onawe and it is a popular walk. Some people say it is quite an spiritual and emotional experience.