Ensure that you do not stay in Australia for more than 12 months in any 18 month period. Like all visitors, parents granted Visitor visas are expected to maintain extended periods of absence between visits to Australia. Your visa will be subject to condition 8558, which states that you must not stay in Australia for more than 12 months in any 18 month period. If you do not comply with this condition, your visa may be liable for cancellation.