Ngarrindjeri man Ashley Millar says working as a ranger has given him the chance to see the best parts of his country, and immerse himself in its health.

Mr Millar has been employed under South Australia's Aboriginal Ranger Program, delivered through the state's National Parks and Wildlife Service, for around two years.

Launched in 2022, 15 new park rangers were created with a $5 million commitment from the SA government.

The program utilises First Nations knowledge to Care for Country, with areas from Adelaide and surrounding regions to Kangaroo Island, Limestone Coast and the Far West Coast.

Mr Millar has worked on the Fleurieu Peninsula.

"As a Ngarrindjeri man, it has been a pleasure over the last two years to be working on Country and looking after the land and water," he said.

"The Fleurieu Peninsula is a special place, and I have had amazing opportunities to see the best parts. In my role as a ranger, I have been able to really immerse myself in biodiversity work.

"I have been part of a number of programs, including a 20-year program supporting seabirds on West Island, south of Encounter Bay, and planting nationally vulnerable Hindmarsh correa plants as part of the Hindmarsh Valley Hotspot Project.

"Another great part about been a ranger is working alongside a great community of volunteers, including volunteer rangers, Friends of Parks and Nature and other groups. They dedicate lots of time and work with us in partnership on large scale projects like revegetation."

Promoting and sustaining storytelling, culturally significant sites and language are also part of the job for rangers.

13 per cent of South Australia - 13.5 million hectares or close to two thirds of the state's reserve system, is overseen with 12 co-management agreements across 35 parks and reserves.

That co-management model operates as a partnership between Aboriginal groups and the SA government.