It was taken on Monday, around 10am.
"I was sickened that people could steal from a car with a baby seat in and just take a nappy bag," Mrs Berra said.
"We had a lot of stuff in there but it was a nappy bag. Once it had happened I started to see all the red lights. There was glass where other cars had been broken into, there was another car there but no one else. It was like a set up."
She said she and her husband Damien and daughter Sylvia-Layne, 23 months, had been enjoying "the best holiday we'd ever been on" with her brother and sister-in-law. They wanted to enjoy a soak in geothermally heated waters and were going to visit hot pools in Rotorua until they learned of a natural pool.
"My brother read about Kerosene Creek and he said it would be like in nature and thought we would prefer to see it that way."
She said she normally leaves her jewellery at home but had it with her this holiday. She left it in the car due to reading about the sulphurous effects on jewellery. Her husband's wedding ring was made from gold that had belonged to his mother.
"We don't care about the other stuff. We just want our rings back."
The Berra family live in Indonesia but hail from north Queensland. Mrs Berra's brother and sister-in-law, Glen and Rebecca Hanley, joined them on the trip.
The family had continued with their holiday and were yesterday at Whakapapa but had to travel to Hamilton to get their rental car window replaced.
Rotorua police Sergeant Lee Stringer said there had been several thefts from cars parked at the spot in recent days. He said police were investigating but there were a number of ways tourists and the Rotorua community could help combat this type of crime.
These included being vigilant, taking note of suspicious vehicles and people, and not to leave items of value in their vehicle.
"Do not be tempted to purchase electrical items cheaply and report these people anonymously if need be to the Crimestoppers line 0800 555 111," Mr Stringer said.
-A Givealittle page has been set up by a friend of the Berra family to raise awareness. Any money raised will be donated to a charity chosen by the person who helps recover the rings.
Stolen jewellery
* A plain gold man's wedding band, set of three white gold rings
* An engagement ring that has a four-petal flower band, splits from one into two and back to one. The petals and band are inlaid with diamonds
* A wedding ring handmade to match the engagement ring and inlaid with diamonds and
engraved with Omnia Vincit Amour, which means love conquers all things
* An eternity ring handmade to match the wedding ring and inlaid with diamonds.
