Gaoshan Island stands in the middle west of the Changdao Islands, with an altitude of 204 meters. Its height is the highest among the 32 islands in Changdao. It looks like a giant horn protruding from the water. The mountain island is surrounded by extremely steep cliffs, except for a small pebble beach on the southeast side, and the mountains behind the beach are still very steep. People carved a narrow path on this mountain wall, leading directly to the top of the mountain. Visitors can climb here to have a panoramic view of the ocean scenery.