An married couple who vanished last week while visiting a remote area of central Australia have been found after a desperate four-day search.

Northern Territory Police pleaded for public assistance on Monday night to help find Alex, 64, and Marisol, 58, who had last been seen in Northern Territory’s Finke Gorge National Park.

The couple were last spotted last Thursday in Palm Valley, a popular tourist spot known for its groves of rare red cabbage palms.

Concerned family members reported the couple missing to police on Monday.

NT Police confirmed on Tuesday that just over four hours after their plea, officers  located the pair safe and well.

Alex and Marisol were travelling to Kings Canyon in Watarrka National Park in a silver Isuzu D-Max when they went missing. 

Authorities launched an extensive search involving police vehicles and aircraft, with the assistance of Northern Territory Parks and Wildlife.

‘The family last heard from them on the 10th of November where they were constantly sending photos through and … (have) heard nothing since,’ Darwin Watch Commander Mark Edwards told ABC News.

‘I mean, in that part of the territory, there is either little or no reception,’ he said during the search.

‘However, obviously because it’s been a week now, you would think that they would have come back into contact somewhere and at least reached out to the family.’

Officers also sent texts to the couple’s mobile phones to attempt to contact them but they were turned either off or out of range.

Search and Rescue thanked the public for their assistance and reminded locals and visitors that it is important to share travel plans with family or friends when exploring remote areas of the Northern Territory.