Missing man Mark Tromp has been found near Wangaratta airport after a "bizarre" trip that left other members of his family in hospital with stress-related complaints.

Berry farmer Mr Tromp, 51, and his family left their home at Silvan, east of Melbourne, on Monday, taking cash but leaving behind bank cards and mobile phones.

Their adult children, who were initially with the couple, left their parents in the New South Wales central tablelands after they did not want to continue with the holiday.

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Mr Tromp and his wife Jacoba were then reported missing.

Mrs Tromp was located safe on Thursday by a member of the public and was taken to a hospital in Yass suffering from stress-related health concerns.

One daughter was also hospitalised in Goulburn with stress-related health issues.

Mr Tromp was found on a street near the Wangaratta airport late on Saturday afternoon. A police spokesman said he was in good health.

It is believed he has been taken to the Wangaratta police station.

Police said they have spoken to Mr Tromp, who is safe and well, but would not reveal further details, saying it was now a private matter for the family.

His son Mitchell has told reporters the he was "jumping for joy" over the news.

"It's such a relief, I'm just so happy," the 25-year-old told the Herald Sun.

"It's going to be the best Father's Day of my life."

Mitchell earlier said his parents were paranoid before they disappeared and were "fleeing something", describing their behaviour as "like a movie".

"I've never seen anything like it — it's really hard to explain or put a word on it but they were just fearing for their lives and then they decided to flee," he said.

Mr Tromp abandoned the grey Peugeot station wagon the family had been travelling in and fled from police in Wangaratta in north-east Victoria on Wednesday night.

Police searched the area but he was not found.

Police said the circumstances around the case were unusual and one officer described it as "the most bizarre case in 30 years".

Timeline of the family road trip

Monday, August 29

The family of five leave their Silvan redcurrant farm in a grey Peugeot station wagon with a large amount of cash, but bank cards and mobile phones are left behind

The family of five leave their Silvan redcurrant farm in a grey Peugeot station wagon with a large amount of cash, but bank cards and mobile phones are left behind Heading towards New South Wales, son Mitchell Tromp has his phone thrown out of the car window at Warburton, east of Melbourne

Tuesday, August 30

Mitchell leaves the family trip at Bathurst

Mitchell leaves the family trip at Bathurst The rest of the family travel to Jenolan Caves in the NSW central tablelands before the two daughters leave their parents at Goulburn

The rest of the family travel to Jenolan Caves in the NSW central tablelands before the two daughters leave their parents at Goulburn Daughter Riana is hospitalised with stress-related health issues at Goulburn

Daughter Riana is hospitalised with stress-related health issues at Goulburn Police visit the Tromp family home after Mark and Jacoba are reported missing and find the house unlocked and paperwork everywhere

Wednesday, August 31

The family's car is found in Wangaratta in Victoria's north-east after police receive a report that it was seen following another car

The family's car is found in Wangaratta in Victoria's north-east after police receive a report that it was seen following another car Police pull the car over and a man, believed to be Mark Tromp, runs away into a nearby park

Police pull the car over and a man, believed to be Mark Tromp, runs away into a nearby park The area is searched with sniffer dogs, but he is not found

The area is searched with sniffer dogs, but he is not found Mitchell and Ella Tromp make their way back to Victoria and arrive to find police at their farm

Thursday, September 1

Jacoba Tromp is found and taken by a member of the public to Yass hospital where she is assessed for stress-related health concerns

Jacoba Tromp is found and taken by a member of the public to Yass hospital where she is assessed for stress-related health concerns Mitchell and Ella appeal to the public for help to find their father

Mitchell and Ella appeal to the public for help to find their father Mitchell says his parents had mounting business pressures and were scared and paranoid when he left them on the trip

Friday, September 2

Jacoba Tromp is transferred to Goulburn hospital to be treated alongside Riana

Saturday, September 3

Mark Tromp is found on a street near the Wangaratta airport in "good health"

ABC/AAP