Despite pipe construction being imminent, Plug the Pipe protesters have not given up and will march again on the Victorian Parliament next Tuesday.

The lobby group fighting the northsouth (Sugarloaf) pipeline has organised a convoy of vehicles to travel to Melbourne.

"We don't believe it's ever too late," Shepparton East orchardist Gary Godwill said of the protest.

"Even if they start dropping the pipeline in, we'll be there because we believe we will be ruined if they do."

Mr Godwill doubted the savings would ever be generated to provide the 75 Gl of savings for the Melbourne supply.

"They are claiming the water will come from 900 Gl of losses but they could only deliver 450 Gl for the last season."

The pipeline is being built as a tradeoff for the $1 billion Foodbowl Modernisation Project, with savings to be split between Melbourne, irrigators and the environment.

The convoy will be driving into Spring St, where Plug the Pipe stewards will park vehicles across Spring St and down Bourke St.

Speeches will be delivered on the steps of parliament.

Shepparton protesters will meet at the Melbourne Rd trotting track at 8 am Tuesday morning and plan to set off about 8.30 am.

Other meeting points are: Kyabram Wilf Cox Complex, leaving at 8.30 am; Kerang and Cohuna phone Andrew Leahy 0408 500 875; Mansfield median strip opposite the police station leaving at 8.15 am; Rochester, Lockington and Echuca leaving Rochester Railway Station at 8.30 am; and at Yea, leaving the Yea Swimming Pool at 9.30 am.

All city supporters, who can't join the convoy can meet the group on the steps of parliament.