These iconic yellow and green ferries have trundled across the harbour for decades and they’re one of the cheap, convenient and easy things to do in Sydney to explore the city, with fares starting at $5.60. Some of the best journeys are Circular Quay to Manly (around 30 minutes) route or Circular Quay to Watsons Bay. The Zoo Pass is also a good deal; it includes a 12-minute trip from Circular Quay to Taronga Zoo Wharf, entry and a return fare – all for under $50.