Drizzling Rain in Butterfly Valley May 25, 2024, Ma'andi Township, Jinping County, Honghe Prefecture, Yunnan Province, China. From late May to early June each year, the area witnesses the spectacular phenomenon of hundreds of millions of butterflies. Every year, many tourists from both domestic and international destinations come here to view this amazing sight of butterflies. Suddenly, light rain began to fall, but the rain could not stop them from exploring and experiencing the wonders of nature.