Before 9:00 AM, you need to exchange your tickets at the Captain Cook counter at Circular Quay Wharf 6. There are many ferry services, with departures every 30 minutes to an hour on weekdays. You can enjoy the day from 9:00 AM until 6 or 7 PM. Note that not all stops are served by every ferry, so pay attention to the last service times. We visited three spots in one day: Taronga Zoo, Manly Beach, and Watsons Bay, which felt like a full and enjoyable experience. The zoo opens at 9:30 AM, has a large area, a rich variety of animals, and some shows. It takes about 4 hours to walk through everything thoroughly, requiring some stamina. A great feature is that most of the park has sloped pathways, making it very suitable for families with strollers or wheelchairs. In the afternoon, Manly Beach is beautiful and has many souvenir shops to browse. I recommend Manly Grill, a steak restaurant there, which is delicious 😋. In the evening, we went to Watsons Bay to see the cliffs, which required climbing some stairs. It was spectacular but a bit chilly. Overall, it was well worth the ticket price. Those on a self-guided tour in Sydney should definitely try it. You can see the Sydney Opera House and Harbour Bridge along the ferry route, and every photo you take will be beautiful! For those with children, seniors, or less stamina, I recommend buying a 2-day ferry pass so you can take your time, otherwise, completing all these activities in one day can be quite tiring 😂.