Sheridan Christopher Foot, left, and Taylor William Meikle, appear in the Dunedin District Court for sentencing on Tuesday afternoon.

A Good Samaritan was kicked and punched to the ground by three "drunken, arrogant and violent men" in a racially-fuelled attack at a popular Wanaka attraction.

Teenagers Taylor William Meikle, 18, and Sheridan Christopher Foot, of Dunedin, appeared for sentencing before Judge Kevin Phillips in the Dunedin District Court on Tuesday afternoon.

The pair were involved in an attack on an Australian tourist, who was holidaying in New Zealand with his wife and three young children.

A third person has pleaded not-guilty over the incident at Puzzling World in January.

"I find it alarming that young men can become so drunk and get so violent," Judge Phillips said of the incident.

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The Dunedin trio, along with two female friends, travelled to the Otago town in one of the men's ute to attend a car show on the weekend of January 20.

That afternoon the ute parked at Puzzling World, with onlookers describing the group as intoxicated and looking for trouble.

Soon afterwards Meikle hurled racial abuse at an Indian man and his 5-year-old daughter, telling them to go back to their "f…… country".

A bystander apologised to the family saying New Zealanders were not like this.

"You acted appallingly in a tourist centre, to a tourist … the lifeblood of this country's economy," the judge told Meikle.

The 46-year-old victim from Australia's Northern Territory also heard the abuse and went to help.

The defendants tried to leave the scene, but hit a parked car. The victim checked the damage and noted the ute's registration.

The teenagers got out of the ute with the man who has pleaded not-guilty allegedly hurling derogatory and threatening language, according to the police summary of facts.

The victim held him off, but Meikle and Foot soon approached.

PAMELA WADE/STUFF The pair attacked a tourist and a man who intervened at Puzzling World in Wanaka.

A beer bottle was thrown, but the victim managed to duck before it hit his head. But he could not avoid the punches and kicks that were to follow.

As he hit the ground trying to protect his head, police said the teenagers continued kicking and punching his head and body.

His wife and child tried to intervene, but Meikle pulled the woman back saying "I'm a boxer, he's doing alright".

One of the trio told her they were not afraid to hit her.

The assault ended when a bystander intervened with the Australian man left dazed, injured and shell-shocked.

He was told by one of the defendants: "You take a swing at my mates, you take a swing at me. I'm a Golden Gloves (sic)."

As the victim walked to the foyer of the tourist attraction, he was taken in a headlock and punched again.

Meikle warned the man's wife not to intervene.

A bystander was able to deflect a running blow from the third man, while another held Foot back.

The third man's girlfriend told him to get in the car or their relationship was over and the group left the scene and then later abandoned their vehicle as police searched for the assailants.

The victim suffered bruising to his chest and upper body, abrasions, a sore head and a twisted neck.

When interviewed by police the trio denied many of the accusations.

Judge Phillips said the victim was vulnerable and did not expect to be attacked by "drunken, arrogant and violent men".

Foot's sentencing was delayed in order to him to find a suitable home detention address.

Meikle had pleaded guilty to injuring with intent, threatening language and assault and was sentenced to eight months' home detention and 200 community service hours.