The 45-year-old actress was joined by partner Liev Schreiber, who was spotted pushing their luggage on a cart.
Later in the day, Naomi and a shirtless Liev relaxed at a local beach with Samuel and Sasha.
It was recently announced that Liev has been nominated for a Golden Globe for Best Performance by an Actor in a television series – Drama for his work on Showtime show Ray Donovan.
FYI: Samuel is wearing a Snapper Rock rash guard.
25+ pictures inside of Naomi Watts and Liev Schreiber touching in Sydney… More Here! »