On your fifth day, explore the modern side of Chongqing by visiting Jiefangbei Central Business District (CBD). This bustling area is known for its high-rise buildings, luxury shopping malls, and vibrant nightlife. Spend the day shopping for designer brands, enjoying international cuisine, and experiencing the city's vibrant energy. In the evening, make your way to Hongya Cave, a unique architectural complex built on a steep hillside. Explore the maze-like streets, visit the shops and restaurants, and enjoy the stunning night view of the city from the top of the cave.