Urgent! What should Tomb-Sweeping Day wear to Chongqing Wulong?

When I went to Qingming, Wulong was still very cold, especially in the mountains. Better take a coat. Shoes are not sandals, it doesn't matter. I suggest sports shoes. In addition, you'd better bring a mat, and you can find a lawn to sit and eat something. The weather in Chongqing should be good. Pay attention to the weather forecast of that day.