Special prizes will be awarded to the finders of specially marked rocks.
Liz says the event is to help make people aware everyone is different.
"We want people to be aware there are these people doing so well living in the community independently, with support.
"It is trying to show people how easy it is to be an inclusive community. It's just something small, but special.
"If you see them along the trail say hello."
She says there will be beautiful rocks to find and some have positive messages on them.
Liz says her son Shannon Puha, who has special needs, loves his time in the Redwoods and loves hunting for and placing the rocks.
She says the Redwoods is a great place to lift spirits, have joy and smiles.
Their family became part of the rock hunting community after Liz used to see beautifully painted rocks while out walking, and then looked up Rotorocks after seeing the name on one she had picked up.
The family now paint rocks too and have a Zerkas Rocks Facebook page.
"It's just the happiness and joy we bring to these children and even adults when they find these rocks and then post with them.
"It's great to know a little painted rock can bring joy to people and put a smile on people's faces, because some people don't get enough of that these days."
Some of the rocks end up going all over the country and even overseas.
