When is SEA LIFE Sydney open? Opening times at SEA LIFE Sydney vary throughout the year. For our opening times please follow the link - https://www.sydneyaquarium.com.au/plan/opening-hours/ Related articles How do I contact your Customer Services team? If I arrive at last entry will I still have enough time to view the whole attraction? What type of penguins do you encounter? What is a Fully Flexible Ticket? What is Admission plus Glass Bottom Boat?