What clothes are appropriate to wear when going to Sanjiaolong Bay in July?

Summer clothes. According to Baidu query:

1. Sanjiaolongwan Nature Reserve is located in Jilin Province. July is the summer and the weather is hot. You can bring some extra short sleeves to change into.

2. Secondly, sunscreen and sun-protective clothing are necessary when traveling. July is a rainy season, so you need to prepare an umbrella in advance or bring a pair of rain boots.