Karl Johnstone, director of the New Zealand Maori Arts and Crafts Institute in Rotorua (which has organised the voyage, Waka Tapu, in partnership with Te Tai Tokerau Tarai Waka), said the sight would be spectacular.
Hundreds of spectators, along with dignitaries from Maoridom and politics, and a delegation from Hawaii, were expected to be there.
"Sailing is part of this nation's psyche, history and culture," Mr Johnstone said.
"Waka Tapu will inspire New Zealanders all around the world. It will go down in history as one of our great maritime achievement stories."
The voyage, 20 years in the planning, would retrace the course taken by the ancestors of Maori when they first travelled across the Pacific to make their home in New Zealand. It would also close the final corner of the Polynesian Triangle, defined by Hawaii in the north, Aotearoa in the south and Rapa Nui in the east.
The canoes' voyage can be followed on the websites www.wakatapu.com or www.teaurere.org.nz, while messages can be sent to the crews by email to te.aurere@xtra.co.nz.