The final day of the campaign before Saturday's by-election vote brought NSW Premier Chris Minns and Opposition Leader Mark Speakman back to the electorate yet again.

And they will be back in the area on Saturday for the final push on polling day.

The focus of NSW politics has been centred on Kiama for the by-election over the past month with Labor desperate to regain the seat for the first time since 2011 and Speakman hoping to salvage his job by turning the tide for the Coalition.

All signs point to a Labor landslide win after Katelin McInerney has fronted up again after she was narrowly defeated in 2023 by now disgraced former independent MP Gareth Ward, whose resignation over sexual assault offences set the by-election in motion more than a month ago.

Minns dropped by Bomaderry High on Friday with McInerney and Acting Minister for Education, Courtney Houssos to spruik the government's efforts to upgrade the school.

He said construction of the $41 million upgrade is progressing ahead of schedule, with students set to benefit from a new school building three months earlier than planned.

A new Technological and Applied Studies building will open on Day 1 in Term 4, which includes three new state-of-the-art classrooms as well as three new workshops for woodwork, metalwork, and food technology.

The school is also undergoing refurbishment of 46 existing classrooms and the installation of a new vocational education kitchen.

“We’re delivering more teachers in classrooms while also delivering world class schools right here in the Shoalhaven, so every kid has access to a world class education.

“Despite this project being promised by the former government in 2021, when we were elected not one shovel had been put in the ground, designs hadn’t been finalised, and contracts hadn’t been awarded.

“We know there is more work to be done but we are getting on with the job of delivering on the things that matter for the Kiama region."

McInerney said she would "make sure that we continue to deliver the critical infrastructure and services that our community needs and relies on”.

Serena Copley and Mark Speakman on the campaign trail in Kiama on Friday.

The Liberal Party shot back by saying it was a by-election stunt, the previous Coalition government had funded the school's improvements and that finishing three months ahead is within the standard margin for error for a project this size so to call it “ahead of schedule” is stretching the truth.

Liberal candidate Serena Copley said the "overwhelming message" from Kiama electorate is that they have been forgotten by the NSW Government.

"What I'm hearing is Liberal projects being claimed as Labor's own," she said.

"Local people are very disappointed in the Minns Labor Government and they should not reward them for the lack of attention."

While the major parties were bickering, Community Independent candidate Kate Dezarnaulds and The Greens' Tonia Gray were standing side by side at Kiama Uniting Church, showing that politics does not need to be about point-scoring and mud-slinging.

NSW Greens Upper House MP Cate Faehrmann pressed the flesh with the voters to help Dr Gray's penultimate day of the campaign.

Kate Dezarnaulds and Tonia Gray. Photo: The Bugle

Faehrmann said Labor and the Liberals could not be trusted equally to truly represent the interests of the people in the Kiama electorate.

"There's a big group of candidates, it's 13, it's very confusing for voters but the Greens have a great track record on climate, environment and the community. Every time we vote we put that first," Faermann said.

"A vote for Labor in this election would just give the government more power. More power really is the last thing the government needs.

"They have not done enough, frankly, while they've been in government on key issues that the community cares about.

"The Greens have been campaigning on environment, climate, social justice for many decades.

"You know where we stand, you know that we will represent those key interests every time and very crucially we don't stand for vested interests like Labor and the Liberals do.

Greens trio Howard Jones, Tonia Gray and Cate Faerhmann. Photo: The Bugle

"So when you vote for a Labor candidate or for a Liberal candidate you actually don't know ultimately what they're going to do when they're in the Parliament."

She said developers, the fossil fuel and gambling industries held sway over the major parties and that influence can have flow-on effects on a range issues.

"People are seeing the threats to their beautiful coastal bushlands from the threat of overdevelopment. I've done quite a bit of work on trying to stop those zombie DAs from clearing some of the last beautiful pockets of bushland," she added.

"Also under Labor, in terms of those climate events, what we have seen is the continued approval of coal mine expansion. So even though Labor might talk about net zero, everything they're doing in terms of the climate space is actually increasing global emissions.

"Even if the Greens don't get elected this time, a strong Greens vote sends a message to whoever does ultimately become the successful candidate that the people of Kiama care about the environment, climate and they want to make sure that their views are represented in whoever wins a seat.

"We can build houses sensitively and make sure that that future neighbourhood is walkable, healthy for the community that lives there, is connected, but the government isn't thinking that way and one of the reasons that it isn't is because developers are in their ear wanting to capitalise in some ways on this. In their ear."