Hi, my enquiry, is can my 11 year old holiday with my parents in another state for 10 days? My ex and I have never had custody of children or money issues in four years. My parents are a huge part of my son's life, before and after school and taking him to sports training. My ex verbally agreed to the holiday as he did last year as well. We have never had any family court orders issued and my son has an Australian passport approved by his father. The holiday is not overseas. Do I need his permission under family law?