Candace Wu and Nicholette Te Wao are about to walk 100 kilometres from Maroubra to Wollongong for the inaugural Sth Sydney 2 Sth Coast Walk For Hunger.
The two women recently teamed up with The Hunger Project to organise the fund-raiser and have encouraged other people to form teams and join them on their two-day trek starting at 12.01am on October 18 and finishing just before midnight on October 19.
The Hunger Project runs rural development programs in Africa.
When Ms Wu and Ms Te Wao started researching a trip to Uganda as part of the Business Chicks Leadership and Immersion Program, they were shocked to find the extent to which poverty and access to clean water were still major concerns for many Africans.
In November they will meet women who have benefited from The Hunger Project's programs.
But even before leaving Australia they have discovered that every day, thousands of Ugandan women walk for hours to fetch potable water for their communities.
And many others are forced to risk illness and drink from ponds that are often contaminated.
"It's a wake-up call when you realise that many of the things you take for granted, like clean tap water, are rare in other parts of the world," Mrs Wu said.
The two women have set themselves a fund-raising target of $100,000.
Ms Te Wao said that would make a huge difference in Uganda.
"It would provide more than 100 communities with the funds to drill a bore hole, giving them access to clean water," she said.
The 100-kilometre Walk For Hunger involves teams of four and individuals who will be placed in groups walking through the day and night with regular 15-minute breaks.
Ms Wu, who grew up in Wollongong but now lives in Maroubra, said the trek included a section through the Royal National Park but that had to be done during the day.
There is also a shorter option for those not able to walk such a distance.
For information, donations and registrations for the 100-kilometre walk, go to sthsyd2sthcoast.org.
A web page at http://thp.org.au/ has been established as the best place to go for information about activities run by The Hunger Project.