-A magnificent view of the Harbour Bridge and the sea. -Great picnic and photo spots. -Free entrance to the Sydney Observatory and the Aerospace Exhibition. -The bathroom at the Sydney Observatory is very clean. -Give yourself1-2 hours to stroll leisurely. Tips for getting here: 1. Take the train to the ring pier. 2. Walk to Argyle Street in the Rock District. 3. Two ways to get from Argyle Street to Sydney Observatory: (a) Just in front of the tunnel, take the stairs at night, or (b) cross the tunnel and turn left onto Watsons Road.