Sydney Harbour Bridge, located in Jackson Harbour, Australia, is the world's largest single-arch bridge. The Harbour Bridge is the representative building of early Sydney. It is like a long rainbow across the bay. It is magnificent and magnificent. It is across the sea from the world-famous Sydney Opera House and becomes the symbol of Sydney. Whether from the shore or at sea, the harbour bridge is a rainbow across the harbour. With the Sydney Opera House in the same frame, every visitor here will take pictures. We watched the bridge from the sea by yacht in the harbour, passed under the bridge, walked across the Harbour Bridge in the evening, and there were runners on the bridge. The light on the bridge was rather dim and no two photos were taken.