We are coming to Sydney next Saturday (June 16) with family ( 6 adults, a 5 and a 2.5 yo) and have 5.30pm Tickets for the Zoo. As we are staying at The Rocks, the plan is to catch a ferry across the harbour and then the bus up to the zoo entrance. I have heard about the terrible crowds. Any advice on what time we should aim to catch the ferry? Will there be line ups there? And the bus.... are they running regularly? How long is the walk through the light display? I would appreciate any advice from those who have done this same outing to help us avoid the pitfalls. Thanks in advance.