The family of Dreamworld victim Cindy Low say they are traumatised by her death as they ask for privacy while they grieve.
Ms Goodchild had two daughters, aged eight months and 12 years.
"She is going through unimaginable pain at the moment".
"A handsome wife, mother and dear friend was killed today while enjoy [ing] what should have been a relaxing family holiday", one friend of Ms Low said in an online tribute.
Kim Dorsett, Luke and Kate's mother, told The Courier-Mail that she was devastated by the loss.
Douglas Robinson, who met the couple in 2008 at Canberra's long-standing gay club Hush, said he was shocked to hear the news.
On Wednesday Australian writer Richard Cooke, who was a close friend of Mr Araghi, published a moving tribute.
Michelle Lewkowicz said: "Thinking of you Roozi and all the times you made me laugh, smile and corrected my grammar!"
(L-R) Douglas Robinson, Luke Dorsett, Morgan Fuery and Roozbeh Araghi at Canberra's Hush Bar.
"We want to reach out and let them know that Gold Coasters will be doing our best to make sure they are comforted". "A fearless man", Michael Googan said.
According to 7 News, a failed water pump caused a raft to become lodged at the top of a conveyor belt at the end of the ride in the Gold Coast theme park on Tuesday.
The boy's mother was Cindy Low, a 42-year-old New Zealand citizen who lived in Sydney. The mother-of-two was on the ride with her 10-year-old son, who is now in hospital.
Dreamworld chief executive Craig Davidson said the park was working with police to try to find out what went wrong.
The fact both children survived is "a miracle", police said on Wednesday.
"Details of this external audit will be provided to the coroner and workplace safety investigators".
A witness, Lia Capes, told the Australian Broadcasting Corp. that she was just about to go on the ride when she saw people running out, crying.
Australian Prime Minister Malcolm Turnbull said there would be a thorough investigation to determine the cause of the accident.
More counsellors and support staff will be sent to help staff and others deal with the aftermath of the fatal accident.
"The Gold Coast is safe", she told the Seven Network.
"We're going to have to help the family of Dreamworld". It was not immediately clear if they were locals or tourists, police said.
Four adults died in a horror tragedy on a Gold Coast theme park ride on Tuesday.
"We will leave no stone unturned".
"To hold accountable any person that needs to be held accountable for this occurring, but most particularly ensuring that this can never happen again".
Queensland police said anyone who contributed to the deaths would be held to account. Charges could follow including criminal negligence, he said.
"Theme parks are a place for family fun and happiness, not tragedy", he said Tuesday evening.
"It's very important for us".
Dreamworld said in a statement issued on Wednesday night that "park safety is our priority".
Last month's testing included a mechanical and structural inspection by external engineering firm DRA Safety Specialists.
Mr Swan said the union took its concerns about general safety directly to Ardent as far back as April 2015.
If those reports are correct, should the ride have been operating in the afternoon?
Ardent shares were down almost 8 per cent in late trading on Tuesday.