The koaua - and the longest Maori placename:
Tetaumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu
(Te taumata whatatangihanga koauau o tamatea uraehae turipukaka pikimaunga horonuku pokaiwhenua ki tanatahu)

It is the name given by the local Maori people, Ngati Kere to a prominent hill to celebrate the achievements of Maori ancestor, Tamatea Pokai Whenua. Tamatea was a famous chief and warrior of his time. His son Kahungunu was the founder of the Ngati Kahungunu tribe, which extends from Gisborne to Cape Palliser.

Tamatea was so grieved over the loss of his brother in the Matanui battle, he would sit on the hill and play his lament on what is called the koauau or Maori flute.

The name means 'The hilltop where Tamatea, with big knees, conqueror of mountains, eater of land, traveller over land and sea, played his Koauau (flute) to his beloved'.

source - with permission: Central Hawke's Bay District Council