Sydney Harbour is the most prosperous central area of Sydney on both sides. Sydney Harbour is the representative landscape of Sydney and Australia. Opera House and Harbour Bridge are landmark buildings. It has beautiful scenery and tourists from all over the world. Undoubtedly, one of the best views to appreciate Sydney is to swim in the blue water of Sydney Harbour and look across the Straits. The ring wharf of Sydney Harbour is the offshore center of ferry and cruise ships. People can choose ferry and cruise ships of various grades and voyages to enjoy the beautiful scenery of Sydney, the world's largest natural harbour. A boat trip from a circular wharf or Daring Harbor, regardless of the choice, can make people feel comfortable to go through a sea journey. We visited the Opera House, walked across the Harbour Bridge, and took a cruise ship around Sydney Harbour from Darling Harbour. It was a great trip.