The 25th day of campaigning had a soggy start, with Liberal leader Tony Abbott pledging over $751 million to help the ailing Murray-Darling river basin.
Mr Abbott accused Labor of stalling on the issue since it took office in 2007.
"The future of the Murray-Darling should not and cannot be a choice between the environment or agriculture," Mr Abbott said.
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The Coalition also pledged a further $300 million to invest in rural water infrastructure, saying the investment is crucial for the economic wellbeing of agriculture-dependent communities.
The Labor Party also had infrastructure firmly on the agenda this morning, with Prime Minister Julia Gillard promising to spend $2.1 billion to complete the Parramatta to Epping rail link.
The rail link, Labor's biggest spending plan since the election campaign started, is levelled at appeasing voters in marginal Labor seats in western Sydney.
"What we are doing in building the 14 kilometre Parramatta to Epping rail link is ensuring that this missing link that we know is viable, we know it's necessary and we know it's a much needed project for western Sydney, can go ahead," Infrastructure Minister Anthony Albanese told ABC Radio.
But many residents of these electorates are unmoved, saying both the state and federal government have broken their transport promises in the past.
As the ALP struggles to put party leaks behind it during the election campaign, the Liberal Party has vowed to tackle its own leak problem.
Finance spokesman Andrew Robb said 20 of the party's policies will be withheld from budget costings until the source of Treasury Department leak is found.
The Sydney Morning Herald had this week run a story revealing an $840 million hole in the Coalition's budget costings.
"If the leak has come from Treasury then it is in all likelihood a criminal offence," Mr Robb said.
Campaigning in Melbourne, Ms Gillard announced financial assistance of up to $6,000 for unemployed Australians willing to relocate.
But Opposition Treasurer Joe Hockey has accused Labor of being policy thieves, saying the Coalition released policy on a similar relocation bonus earlier this year.
And finally today, activist organisation GetUp has rolled out a campaign asking Mr Abbott to honour his commitment to teach a former Afghan refugee how to surf.
The Opposition Leader says he will keep his promise, which was made as part of a charity auction.
But GetUp says the Liberal leader's office has dropped all contact with them.
