What is the origin of the hexagonal pavilion "Pan Yu"?

There is a rectangular pond in front of the stone, which is called "mirror pond". People must stand in the southwest corner of the square pool to enjoy the "beauty stone", so that the girl's lovely expression can be vividly displayed in front of them. From the east bank of Jinhui to the north along the promenade, the first thing you see is a hexagonal pavilion named "Pan Yu", which is taken from the sentence "Pan Yupan, clouds and water are soaring" in the poem "A Tale of the Floating River" by the poet Wang Wei in the Tang Dynasty. The bluestone platform and stone drum stool in the pavilion are old things left by Qin from the Ming Dynasty.