Stone Bell Hill
Just downriver from Jiujiang is Hukou where the Yangtze River and waters of Boyang Lake converge with an abrupt color change. People have been coming here for centuries to listen to the stone-bell sound resonating from the cliffs overlooking this spot. A few theories are provided why this rare geographical phenomenon happens. Li Daoyuan from the Northern Wei period (386-534) theorizes that it is because the hill has a bell-shaped appearance and hollow inside, thus providing the sound when struck. Or it may be because of the water lapping within the limestone nooks and fissures around its base, as famous litterateur from the same time Su Shui discovered. Su Dongpo also did three trips around its perimeter, before settling on this last explanation for its unique sound also. Many Chinese literati's have left more than twenty calligraphy masterpieces carved upon its rocks, with some dating back to the Tang dynasty (618-907 CE).