Introduction to Laojun Hall: Laojun Hall is located on the mountain behind the upper hall of Xiyuan Canyon. It is a Taoist temple with red walls and blue tiles. The hall is built on a dangerous cliff, with Deyun Waterfall accompanying it. Looking up from the walking trail in the scenic area and looking at Laojun Hall, you can see it clinging to the cliff like a bird, which is a great wonder in the scenic area.