You don’t necessarily need to book tickets in advance for Huangguoshu Waterfall, but it’s highly recommended and often necessary during peak travel seasons or holidays. The waterfall is one of China’s most popular tourist attractions, especially during summer.

To be safe, you should try to purchase your tickets online from the official website or a reputable ticket vendor at least 2-3 days in advance if you’re planning to visit during peak season (usually June to August). If not, be prepared for long queues and potentially limited viewing times.

Keep in mind that there might also be special events or festivals being held around Huangguoshu Waterfall on certain dates. In those cases, ticket availability could be affected. Check the attraction’s official website or contact them directly before your trip to confirm any specific requirements.

Overall, while not mandatory, booking tickets ahead of time for Huangguoshu Waterfall is a great way to avoid hassles and make the most of your visit!