Introduction to Xiyu Lighthouse: The "Xiyu Lighthouse", well known to navigators, stands high on the southwest corner of the village outside Yuweng Island. In the past, ships sailing between Taiwan and Xiamen often used Yuweng Island as their destination. In 1769, an ancient navigation beacon was built near Yiziwei. In 1828, it was converted into a lighthouse. A fire was lit on the top of the tower at night. It was named Xiyu Lighthouse. It was the first lighthouse in Taiwan Province. In the first year of Guangxu of the Qing Dynasty (1875), it was changed to new equipment. A 500-candlepower fourth-class immovable white lamp was installed on the tower. The light could project 15 nautical miles, which not only provided convenience for ships sailing in the Taiwan Strait, but also added to the quaint Yuweng Island. Outstanding.