Royal Children's Hospital

The provided articles focus on Prince Harry and Meghan Markle's recent visit to Australia. The articles detail their activities, including meeting with fans, Meghan's guest appearance on MasterChef Australia, and the nature of their visit as private citizens. There are questions raised regarding the funding of security during their trip. The articles do not contain any information about the Royal Children's Hospital, its activities, or its relevance to the events described. Therefore, a summary about the Royal Children's Hospital cannot be generated based on the provided text.