The city is dominated by the harbor which people have des cribbed as one of the most spectacular in the world. There three things that you must not-and indeed connot-miss.First there is Sydney Harbor bridge in the world. Second the Sydney Opera House is a Famous landmark that most visitors greatly anticipate seeing.Finally don’t miss Fort Denison, where prisoners were kept in solitary confinement for days on a diet of bread and water.The best way to get around is by boat or hydrofoil both of whice have regular services leaving from Circular Quay. If you prefer to do things at your own pace, why not hire one of the many boats available for this purpose?