'We wear the school dresses as a statement to try and gain support by donation to get young African girls access to education,' Gamble told Daily Mail Australia.
'It is essential for every child to have a proper education to maximise their opportunities in life, which otherwise might be denied them.'
The sexy blonde is hoping her Do It In A Dress 4km beach walk will see people join her and her dog Cash on the walk to help raise money.
'With any luck our Do It in A Dress Dog walk for the kids will be successful,' she said. 'I have bought Cash, my dog, a school dress!'
Speaking about her role in the upcoming new series of Real Houswives , Gamble says she's a little worried about how she might come across on screens.
'It's been a rollercoaster ride filming,' she said. 'The girls are all fabulous. I'm getting on with some better than others.
'I feel very comfortable interacting with the girls. You forget the cameras are there. On reflection, I don't feel that comfortable about the way I have behaved in front of the cameras.'
Gamble isn't the only new face after the departure of Andrea Moss - Pettifleur Berenger will also be joining the show.
Dress to impress: Do It In A Dress event is on September 28 http://www.doitinadress.com/gamble-breaux
Source/Photos Credit: The Daily Mail