Voters in the remote Top End electorate of Arafura are to heading to the polls in a by-election race contested by two local leaders.
The seat takes in much of west Arnhem Land, including the world heritage listed Kakadu National Park, as well as all of the Tiwi Islands to the north of the territory's capital of Darwin.
The by-election was triggered by the sudden passing of the long-serving local member in December, who was farewelled in a state funeral earlier this month.
Polls close next Saturday at 6pm.
Here's a closer look at the seat, the candidates and what you need to know about how to vote.
What parts of the Top End are in the electorate of Arafura?
Arafura incorporates a number of different cultural groups and communities.
The seat encompasses Kakadu National Park, including the communities of Jabiru and Gunbalanya as well as parts of west Arnhem Land on the mainland. It also takes in all of the Tiwi Islands, which lie to Darwin's north.
At the last territory election in 2020, there were 5,183 voters enrolled in Arafura.
But turnout was low, with only 52.7 per cent of those voters casting their ballots.
Mr Costa, who won the seat for Labor, secured 53.6 per cent of the two-candidate preferred vote, a slight decrease on the election prior.
Voting has been underway in various remote communities since Tuesday, and only one polling station will actually be open on 'election day', in Jabiru.
Voters in Arafura have traditionally voted in Labor candidates since the seat was created in 1983.
"There was only a period in 2012 to 2016 when it went to the Country Liberal Party (CLP), and that was because the CLP at the time was doing a strong push in the bush," CDU political expert Nathan Franklin said.
He said the seat had a history of electing representatives who were "big movers and shakers" in the Labor Party.
One of the seat's former Labor representatives, Marion Scrymgour, now sits in federal parliament representing the electorate of Lingiari.
Who are the candidates and what do they have to say?
Labor has preselected Manuel Brown, a local community service worker, to run.
Mr Brown's campaign suffered a rocky start after it was revealed he was charged with driving without due care in relation to a fatal crash in 2009.
In a statement released after the story went public, he said:
"When I was asked to run for the seat of Arafura, the first thing that entered my mind was knowing I would have to relive this tragic accident."
Meanwhile, the Country Liberals have chosen Tiwi Islands Regional Council deputy mayor Leslie Tungatalum to run for the seat.
Mr Tungatalum is the son of the first ever Indigenous man to be elected to the territory's parliament, H. Tungatalum, so the CLP is banking on name recognition to hopefully produce a swing towards them.
Both candidates declined interview requests by the ABC.
What issues are voters set to vote on?
In a written response to the ABC's questions, Mr Tungatalum said he was committed to providing more renal dialysis on country and constructing a new clinic in the remote township of Gunbalunya.
"We need so much more support here for our families and our children, and I will fight for better," he said.
Labor's Manuel Brown nominated housing, infrastructure on homelands and outstations, roads and telecommunications issues as the biggest concerns voters had.
Amid rampant overcrowding in remote community homes, he said if elected, he would "advocate for more houses in the bush".
"I also look forward to working with communities and developing local decision making agreements to ensure my mob have a voice," he said.
Mr Franklin said the seat was "diverse" and issues will vary between communities on the mainland and on the Tiwi Islands.
In recent weeks, the federal government has recommitted to conduct culls of feral animals in Kakadu National Park, and says it will fund a new centre in the township of Jabiru.
It follows years of delays to commonwealth funding to upgrade the park to improve tourist access.
What will a result mean for the Labor government?
The outcome in Arafura won't impact whether Chief Minister Natasha Fyles can continue to govern, but it could be seen as a test of how the Labor government and the CLP opposition are performing.
The next territory-wide election is not due until August next year.
If Labor retain the seat, it would mean its majority remains the same.
An unexpected loss, however, would narrow its majority from two seats to just one and take the CLP's seat count in the Legislative Assembly to eight.
Whether or not the seat changes hands will only become clear when polls close at 6pm next Saturday.
