The NSW Department of Education's School Attendance Policy states that all students who are enrolled at school, regardless of their age, are expected to attend that school whenever instruction is provided.
If your child/children are going to be absent for an extended period of time due to travel, greater than 10 school days, please fill out an Application for Extended Leave - Travel, prior to the absence and return it to the school.
Extended absences for other reasons should be applied for in writing prior to the absence.