This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

Tourists visit Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China, April 1, 2026. (Xinhua/Chen Yehua)

A tourist visits Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China, April 1, 2026. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)

This photo taken on April 1, 2026 shows blooming flowers at Huanghuacheng Lakeside Great Wall in Huairou District of Beijing, capital of China. (Xinhua/Chen Yehua)