Committee member and Far North deputy mayor Tania McInnes said local events would include a challenge for the visiting fleet and a re-enactment of the first encounter between Maori and Europeans in the Bay of Islands, when the Endeavour was met off Motuarohia Island by a fleet of 30 waka, each with up to 100 men on board.
A festival in Opua would then welcome the visitors.
Planning was also under way for a two-week tarai waka (waka-building festival), which could become a triennial event.
Northland events
Northland events would focus on the meeting of three great voyaging traditions - Maori, European and Tahitian. Tupaia, a Tahitian navigator, helped Cook navigate across the Pacific.
The organisers also hope to leave long-lasting educational, ecological, economic and social benefits.
Committee member David Mules said that could include conservation projects and improved tourist infrastructure at the key Northland sites of Motuarohia and Maiki Hill in Russell, plus the erection of pou and stone sculptures.
Jane Hindle, who co-chairs the committee with James Eruera, said the commemorations would acknowledge colonisation, and aimed to help heal historical divisions, but they also had to be fun.
Other early Europeans, such as the Dutch explorer Tasman, who sailed past Northland and named some of its features, and the Frenchmen de Surville and Du Fresne, who followed shortly after Cook, would not be overlooked.
The participation of the replica Endeavour, which is based at the Australian Maritime Museum, is still being negotiated.
In Northland the fleet is expected to visit Bream Bay, the Bay of Islands, the Cavalli Islands and Doubtless Bay.
The main speaker at Monday's hui was Pacific Economic Ambassador and former MP Shane Jones.
Also present were celestial navigation expert Hekenukumai Busby, Tai Tokerau MP Kelvin Davis, and iwi, conservation, heritage, community board and tourism representatives.
The festivities will start in October 2019, in Gisborne, and will form part of national commemorations which began in 2014, the 200th anniversary of New Zealand's first European settlement, and will end in 2020.
As part of the commemorations musician Tim Finn is writing an opera based on the life of Tupaia.