BIG BUS Sydney operates a hop on hop off tourist bus service with full commentary in open top, double deck buses. 1 Big Bus ticket is valid for 24 or 48 hours. The Big Bus tour takes in all the major sights in Sydney City and Bondi Beach including: Sydney Harbour Bridge, Darling Harbour, The Rocks, Chinatown, Circular Quay, Sydney Opera House, Botanical Gardens, Hyde Park, Kings Cross, Woolloomooloo, Bondi Beach, Double Bay and Rose Bay.