Opponents of a plan to expand Auckland's port say the Auckland Council needs to get independent information about the proposal, including whether the port should be moved.
The port's plan, announced last year, to extend Bledisloe Wharf and reclaim land caused a public outcry.
Earlier this month, the port company scaled back its plans, reducing the reclamation area from 22 to 6.6 hectares and the wharf extension from 300 to 180 metres.
Community groups opposing the latest proposal told the council's Auckland Plan committee it had not been given good information about the costs and benefits.
Barry Holton, from the Westhaven Marina Users' Association, said the committee should get independent advice about alternatives, including other locations for the port.
But the port company's chief executive, Tony Gibson, said expansion was the only option and it's time to stop debating the port's location.