"We're working really closely with Waitaha, Ngāti Pūkenga, Ngā Potiki and Ngāti He, as a hapu of Ngāi te Rangi," de Monchy said.
And he says the latest design is impressive.
"It's pretty fascinating. It's a waka that lands at this embayment where the new carpark is. And it has a circular entrance way where people can enter the park and see a mixture of relevant stories from the past through to the present.
"Then they go through a waharoa entrance way that leads into the track network itself."
A new carpark will create 86 spaces on top of the 60 already available, and there'll also be designated spots for buses.
For the iwi, it's a chance to tell the story of the coming together of three waka.
"We finally get a chance to tell our story about Te Rae o Pāpāmoa," Whareoteriri Rahiri of Waitaha said.
"The significance of Pāpāmoa Hills to us is the amount of history that it contains, the cultural sites that are there and also the commanding views that we have."
After the initial concept was signed off last year, the project has now reached its "worked-through design" milestone.
The next step is to do a detailed design and an "expression of interest" with construction contractors in the region.
All going well, construction of the new elements will begin in November.
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