Tourists take photos in front of a frozen waterfall at the Jiuzhaigou National Park in southwest China's Sichuan Province, Jan. 4, 2024. An international tourism festival featuring frozen waterfalls opened Thursday at the Jiuzhaigou National Park, a UNESCO World Heritage Site.

The national park, also known as the Jiuzhai Valley, contains around 20 tourist sites and is known for its spectacular waterfalls, lush forest, serene plateau lakes, and karst rock formations. (Xinhua/Wang Xi)