Photos show "waterfall clouds" unfolding down the slopes of Niubei Mountain in Ya'an, Sichuan Province, on October 27, 2023. /CFP

Niubei Mountain in Sichuan Province's Ya'an witnesses a spectacular natural phenomenon – "waterfall clouds." As the sun sets, mist cascades down from the mountain, presenting a majestic and breathtaking spectacle. This captivating phenomenon attracts numerous tourists and photography enthusiasts to seize the moment, capturing the rare and beautiful sight with their cameras.