According to legend, there were three sacred mountains in the Bohai Sea a long time ago. After Qin Shihuang unified the six countries, he longed for fame and came here to look for the sacred mountain and the elixir of life. Standing by the sea, he looked at the sea and saw a red light floating at the end of the sea. He asked the alchemist who was driving with him what it was, and the alchemist replied, "It's Fairy Island." Qin Shihuang was overjoyed and asked what the name of Xiandao was. The alchemist couldn't answer for a moment, but suddenly he saw aquatic plants floating in the sea and had a brainwave, so he answered in the name of Penglai. Penglai is also Artemisia Cao Peng. It is said that this is how Penglai got its name. According to legend, the Eight Immortals crossed the sea in Penglai Wonderland. Once, the Eight Immortals gathered in Penglai Pavilion to drink, and when the wine reached the height, Tie Guai Li proposed to go out to sea by light: all the immortals gathered together and decided to cross the sea by their own ways, and no boats were allowed. Han Zhongli took the lead in throwing a big banana fan into the sea, lying flat on his back and drifting away. He Xiangu threw the lotus into the water, and immediately her eyes were red. He Xiangu stood on the lotus and went with the flow. Later, Zhang, Cao Guojiu, Han Xiangzi and Lan Caihe also threw their treasures into the water and swam to the East China Sea with their treasures. The action of the Eight Immortals alarmed the Dragon Palace, and the Dragon King of the East China Sea led the shrimps, soldiers and crabs to go out to sea to watch, and the words clashed with the Eight Immortals, causing a fight. The Dragon King of the East China Sea took the Eight Immortals by surprise and captured Lan Caihe in the Dragon Palace. The Eight Immortals were furious, and each showed his magical powers. They went forward to kill and cut off two dragons. Shrimp soldiers and crabs will be unable to resist, defeated in the sea and hidden in the bottom of the water. The Eight Immortals are fighting at sea. The Dragon King of the East China Sea invited the Dragon Kings of the South China Sea, the North Sea and the West Sea to join forces to search all corners of the country, set off wild waves and scramble to kill all the immortals. At the critical moment, Cao Guojiu's jade plate showed great power, only to see him holding the jade plate and opening the way, and the waves retreated to both sides. The fairy followed, safe and sound. Seeing this, the Dragon King of the Four Seas quickly mobilized the soldiers of the Four Seas and prepared to fight to the death. At this moment, Guanyin Bodhisattva in the South China Sea passed by, stopped the two sides and intervened until the Dragon King in the East China Sea released Lan Caihe, and the two sides went on strike. The Eight Immortals bid farewell to Guanyin Bodhisattva, each holding a treasure, making waves and drifting away.