Although Winter is not quite the time to travel to Phillip Island as it was extremely cold, the Penguin Parade should be on everyone's list to experience at least once. It is disappointing though that you cannot take any pictures, as it is an experience you want to share with everyone else.
Churchill Island was also a real treat! I loved all the antique furniture and farming equipment. We didn't get to the third venue. the Wildlife Sanctuary, as we ended up with a flat tire and it turned into a complete fiasco and took over an hour of our time, so we had to forgo the Wildlife in order to get to the Penguin Parade in time.
You couldn't find a better deal in all of Australia. If you even visit just 2 or 3 venues and use a couple modes of transportation in a day, you have already made out on the deal. It is also very convenient to use the smart pass, no hassles. Sydney is now at the top of my list as being my favorite place I have visited. I am by no means a world traveler, but I have traveled a lot of the United States, have been to Canada, Bermuda, Bahamas and have been to several areas of Australia, and Sydney is absolutely my favorite. I plan another trip to Australia, God willing, in about 4 or 5 years and Sydney will definitely be on the itinerary. I stayed for 3 days this trip, but next time I will plan at least 5-7 days. There is that much to see. I have used Viator for booking other parts of my trip and am completely satisfied with them.