Introduction to the semaphore pole: This flagpole, which is similar to the shape of "Wei", is the "semaphore pole", also known as the "semaphore stand". It is an accessory part of the original lighthouse and was created by the British in the 31st year of Guangxu in the Qing Dynasty (1905). It was built at the same time as the Yantai Mountain Lighthouse and has a history of nearly a hundred years. It is one of the important relics in the modern history of Yantai Mountain. The flag pole is a wooden structure with a shaft made of fine southern fir and is about 20 meters high. The function of the meter is to issue semaphore signals and weather change information to ships entering and leaving the port. It is also used for major events. When foreign ships and important people come to the port by boat, the "Ten Thousand Flags" are hoisted to show welcome and peace. friendly.