The third-generation farmer is inviting everyone who relies on water for their survival to offer a blessing at 3pm on Saturday and share it on social media.

Mr Rowley said the nationwide movement would be a symbolic show of support for the nation's struggling river communities.

"All I ask is for people to take a selfie of their blessing and put it on Facebook," he said.

"It can be anything, like 'water I love you, water I thank you, I respect you', its as simple as that."

The main event will take place at Junction Park in Wentworth, New South Wales, with all denominations, cultures and individuals gathering to show support for people on the edge of the Murray-Darling rivers.

"All churches, no matter whether they're Christian, Muslim, Buddhist or whatever, hold water sacred," he said. "We're not worried what church it is, all are welcome to say a blessing.

"All we're looking to do is give the people up there a hug."

The event is the brainchild of the south-west farmer and is deliberately non-political.

"Politicians can come along, they can pray but they can't preach," Mr Rowley said. 

"It's just to give the people up there hope that the rest of Australia recognises their problem and the fact that we need to do something about it.

"You've got drought, people taking water out of the system illegally, corruption, dead fish galore polluting the area.

"A lot of people haven't had showers for weeks up there in the smaller towns and they're finding it very tough.

"The idea is we take a bottle of water, we bless it and send it up to the Murray through Australia Post.

"We haven't got time for it at the present time so we're asking people to find a sacred spot and at three o'clock on Saturday bless a glass of water and put it on Facebook."

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