The Australian man involved in a fatal jet ski crash in Hawaii has been released on bail.

Tyson Dagley has been charged with negligent homicide after a jet ski he was riding crashed and killed a 16-year-old girl.

The Dagley family, said to be of limited means, took two weeks to raise the $100,000 bail.

Seven News obtained exclusive pictures of Tyson embracing his family and also heard from his father, Alan who said they are struggling to come to terms with the enormity of their son's situation.

"The family back home, we talk on Skype and it's very emotional," he said.

"(Tyson) is a strong kid and we've kept telling him to be strong but I don't know how he's going to feel later on down the track.

"Hopefully he can come through pretty good."

The case is back in court on Friday where Tyson is facing up to a year in prison, but the family is hopeful he will be able to return home soon.

The family of Kristen Fonseca, the girl killed in the collision, has started civil proceedings against Tyson and the company Aloha Jet Ski over their daughter's death.

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