Three Waikato mayors will sign agreements committing their councils to Te Awa Great New Zealand River Ride.
The river ride will follow the Waikato River for 70km from Ngaruawahia to Horahora, through a mix of farmland, exotic vegetation and native bush.
It is expected to become a major tourist drawcard for the region and will open up parts of the wider Waikato, not usually accessible to visitors.
Driven by Te Awa River Ride Trust, the project has a the support of several companies and local councils, and the signing on Monday at Waikato Museum will formalise the commitment of Hamilton City and Waipa and Waikato district councils to the project.
Hamilton Mayor Julie Hardaker, Waikato District Mayor Allan Sanson and Waipa District Mayor Alan Livingston will join trust representative and former Olympic champion Sarah Ulmer for the signing.