Introduction to Zangjun Cave: Located on the east side of the main peak of Xiangshan Mountain, there is a cave entrance covered with stone slabs, about 80 cm square. It is a provincial cultural relic protection unit in Jiangsu. It was first built in the Spring and Autumn Period more than 3,000 years ago. During the Warring States Period, it was used to observe the enemy's situation and station troops in ancient wars.