Arafura Swamp rangers in North East Arnhem Land look after more than 1.2 million hectares of land and sea Country, controlling feral animals and weeds and reducing destructive wildfires.

They are part of a national network of First Nations people who have continued a legacy of caring for Australia's land, rivers, seas, flora and fauna for more than 65,000 years.

Arafura Swamp rangers are part of an expanded nationwide Indigenous team managing Country according to Traditional Owners' objectives, combined with modern conservation training.

Indigenous Australians minister Senator Malarndirri McCarthy on Tuesday was in the remote community of Ramingining, 580km east of Darwin, to meet with the Arafura Swamp rangers, who she said exemplified the benefits of the federal government's $1.3 billion commitment to double the number of Indigenous rangers by 2030.

"I've travelled across the country and met rangers from Healesville in Victoria, to Maningrida and Ramingining in the Top End," she said.

"What I see is people who are proud of the work they're doing."

The minister said expanding the rangers program meant more jobs for First Nations people caring for Country.

"I acknowledge the work of all Indigenous rangers and the care and strength they demonstrate to look after Country for future generations," she said.

More than 1,000 new Indigenous ranger jobs were created across the country in the first expansion round last October, via an investment of $355m over four years, with 770 of those positions taken by First Nations women.

The second round is now open and would create more than 800 new jobs, with $165m in funding to June 2028.

The government hopes the expansion of the Indigenous rangers program will help Close the Gap by increasing the proportion of First Nations people in employment, and providing training pathways for First Nations youth, particularly by creating jobs in remote areas.

Environment and Water minister Tanya Plibersek said Australia was lucky to have the the world's most successful environmentalists to learn from.

"One of the great experiences of my job has been visiting Indigenous Protected Areas around Australia and seeing the work of Aboriginal and Torres Strait Islander rangers up close," she said.

"There's no one better placed to care for land and sea than First Nations communities."

Ms Plibersek said the creation of 12 new Indigenous Protected Areas would double the number of Indigenous rangers.

"We're adding an area the size of Tasmania to the areas protected," she said.

"Protecting native species, dealing with feral animals and weeds, managing fire risks, and restoring our beautiful Australian landscapes.

"At the same time, we're creating jobs and teaching a new generation to care for Country."

Member for Lingiari, Marion Scrymgour, said it was important for First Nations people living in remote communities to be able to train and work in their home communities.

"The Indigenous Rangers Program does just that, providing jobs … and a training program focused on the care and protection of our Country," she said.