Also known as Hongya Cave, it is one of the ancient city gates of Chongqing in ancient times.

Hong Ya Dong is a comprehensive Chongqing tourist attraction integrating Chongqing culture, history, sightseeing, and entertainment, with a rich historical and cultural heritage and the charm of a mountain city. The fusion of traditional Ba-Yu stilted architecture with contemporary design elements results in a distinctive urban panorama. Beyond the stilted structures and vintage commercial thoroughfare, the captivating nighttime light display attracts numerous visitors.