A 36-year-old man has died on the Larapinta Trail in Central Australia.

Key points: The man was walking with a relative when he collapsed on the trail, 2km from Mount Sonder

The man was walking with a relative when he collapsed on the trail, 2km from Mount Sonder He was dead by the time rescuers arrived

He was dead by the time rescuers arrived He's the second person to die on the walk since January 2018, when an American tourist was found dead in high temperatures after taking a wrong turn

The man had been walking with a family member when he collapsed on a remote bush walk trail two kilometres from Mount Sonder on Monday afternoon, Northern Territory Police said in a statement.

The family member ran to the car park and contacted emergency services just before 6:00pm, but the man had died before rescuers arrived.

No information is currently available about what caused the man to collapse, or where he was from.

Police are treating the death as non-suspicious and will prepare a report for the coroner.

The ABC understands the man was completing the Mount Sonder hike, about 150 kilometres west of Alice Springs, as a standalone walk when the incident occurred.

The 14km walk takes about six hours to complete and makes up the final stage 12 of the 223km Larapinta Trail.

The top of Mount Sonder on the Larapinta Trail. ( ABC News: Katrina Beavan )

Four dead on Larapinta Trail

Four people have died on the Larapinta Trail in the past 20 years, and two of those deaths were on Mount Sonder.

Matt Palazzolo, the American tourist who died while hiking in 2018. ( Facebook: Matt Palazzolo )

In January 2018, a 33-year-old American tourist also died on the Mount Sonder trail.

Matt Palazzolo was an actor and LGBTI activist and had set out to climb the 1,300m peak about 8:30am, but was found dead about 5:00pm 400m down the track, about 750m from a carpark near Redbank Gorge.

He had hiked about 16km there and back, before running off from his companion and apparently taking a wrong turn.

Temperatures in February are very high in Central Australia, and reached 42 degrees the day Mr Palazzolo died.

Gisela and Wilfred Thor died while walking at Trephina Gorge. ( Supplied: Thor family )

In February 2017, an elderly German couple who set out to hike Trephina Gorge, also in Central Australia, wandered up to 17km off a marked walk before dying of dehydration and heat stress on a 40-degree day.

Wilfred and Gisela Thor, aged 75 and 73 respectively, were experienced hikers and only had one 600ml bottle of water with them as they set out on a 2km walk.

But they were led astray by an obscured trail marker and a washed-away fence that would normally have delineated the park boundary.

Busy season for rescuers

It has been a particularly busy season for rescuers in the Northern Territory.

Interstate and overseas visitors can underestimate the toll the challenging landscapes, the remoteness, and the extreme weather conditions can pose.

On August 19, a 33-year-old woman was flown to Royal Darwin Hospital after she was injured while hiking at Koolpin Gorge in Kakadu National Park.

A 33-year-old woman was winched out of Koolpin Gorge in Kakadu National Park. ( Supplied: CareFlight )

The woman was visiting Darwin from overseas and was walking with her partner when she slipped and injured her back.

Two days earlier, a foreign tourist aged in her 70s was also flown to hospital after she fell and hit her head near Gunbalanya, while on a walking tour through Arnhem Land.

On August 3, a 52-year-old woman who was three days into the five-day Jatbula trail walk, north of Katherine, had her leg trapped by a dislodged boulder "which was estimated to weigh several hundred kilos", CareFlight said in a statement.

Queensland man Alex Rosenberg, 67, is still missing after disappearing while travelling alone near Edith Falls, 42km north of Katherine in August last year.