As the first stop of the trip to Western Australia, the first feeling that Perth gave us was the yearning - leisure. The river feeds black swan and seagulls, fishing on the beach, chatting on the lawn of the Kings Park, riding on the streets, cycling... The people here are always in a hurry, enjoying their slow life leisurely. ... Perth has become a "city of black swans". Speaking of the black swan in Western Australia, there is a small allusion. Europeans before the 17th century believed that the swan was white, but with the discovery of the first black swan in Western Australia in 1697, this unshakable belief collapsed. Therefore, the descendants often use the Black Swan event to compare very unpredictable and unusual events. Although the black swan event is usually not a good thing -- but this does not prevent us from admiring this noble creature~