Yuwaalaraay designer Lucy Simpson's oyster installations - accompanied by soundscapes - are set to feature along a 9km Sydney harbour foreshore walk, highlighting historically significant Aboriginal sites, people, and stories.

Guided by its Aboriginal and Torres Strait Islander Advisory Panel, the City of Sydney will engage with local Aboriginal communities to gather and share local narratives alongside the sculptures.

The oyster artworks are the latest addition to a walk from Pirrama (Pyrmont) to Wallamool (Woolloomooloo), curated by Emily McDaniel and called Yananurala, which means "to walk Country" in the Gadigal language.

Eleven interpretive signs are already installed along the route.

"These installations are a celebration of Country, story and relationships," Ms Simpson said.

"They provide an invitation to connect to continuing ways of knowing and relating to Country.

"People can sit, stand, touch and connect with these works, hold conversations with each other and with time, and tune in to Country and reflect on the deep layers of history and stories at these sites."

The installations depict clusters of mud flat oyster forms, once prevalent in the harbour, and will be placed at water's edge locations such as Yurong (Mrs Macquarie's Point), the Woolloomooloo bay foreshore, Cockle Bay, and the headland at Barangaroo.

"What I loved about these oyster shell forms is a layering of time embodied in their shapes; you can read their experience and memory," Ms Simpson said.

"Their growth rings are worn and aged as they've moved with the tides and rested in the sun.

"They also come from this first point of contact at Kamay (Botany Bay), a significant meeting point where histories collide, intertwine and sit atop one another.

These sites highlight connections with other key locations across the waterways.

Audio will enhance the experience, bringing to life the rich narratives and cultural heritage of the harbour.

Ms Simpson's design for the sitelines and conversations sculptures was chosen following an open callout for ideas for the phase of the long-term Yananurala project.

These works are part of the City of Sydney's long-standing Eora Journey: Recognition in the Public Domain program, which includes major public artworks by Aboriginal and Torres Strait Islander artists.

Metropolitan Local Aboriginal Land Council CEO, Nathan Moran said Ms Simpson's oyster installations will immerse visitors in local culture and allow them to pay respect by connecting with the Country.

"Lucy Simpson's oyster installations along the water's edge will provide an opportunity for everyone to be immersed in the local culture when travelling into Country. You pay respect by becoming one with that Country," Mr Moran said.

Final project details will be confirmed after further consultation with local Aboriginal and Torres Strait Islander communities.

Development applications for the installations will be submitted later this year, with the sculptures expected to be installed in 2026.

The City of Sydney is collaborating with Placemaking NSW, Infrastructure NSW, Royal Botanic Garden Sydney and Sydney Opera House on the project.