A Current Affair claims a source close to the family revealed the trip cost $15,000.
Gibson was penalised in the Federal Court in September 2017 for five breaches of Australian Consumer Law after falsely claiming she had brain cancer and healed herself with natural remedies.
She also lied to supporters about donating money from her Whole Pantry app and book sales to various charities, including a boy with inoperable brain cancer.
Federal Court Justice Debra Mortimer issued a formal warning to Gibson on Tuesday, November 27, that failure to pay the penalty will make her liable for jail, property seizures and other measures.
"You will be liable to imprisonment, sequestration of property or other punishment," Daily Mail quotes the the penal notice as saying.
"Anyone else who is aware of the order and helps or allows Ms Gibson to breach it may be punished in a similar way", the notice further states.