Zhangjiashan Park, the only park in Ya 'an, was proposed by the former Ya 'an Municipal People's Government in August 1985. Many units and citizens donated money to build it, and it was completed in 1992, providing a place for citizens to rest and exercise. The park covers an area of more than 290 mu, with high mountains and deep valleys. Walking into Zhangjiashan Park, osmanthus trees are lush, the air is fresh and the osmanthus forest is full of fragrance. The delicate and charming Jingui, the elegant Yin Gui, the reddish osmanthus and the beige four-season osmanthus are all beautiful. You can sit in a teahouse, sipping tea and osmanthus; You can also walk on the bluestone trail and enjoy the intoxicating situation of "Shili Osmanthus Gallery".