In the golden month of September, foreign visitor James O'Brien travelled to Shitai County, Anhui Province, east China, for an immersive tour of Penglai Immortal Cave, where he encountered karst wonders forged by geological forces over hundreds of millions of years. Shaped by the passage of time, the varied stalactites fully embody the unique ecological charm of mountain‑and‑water landscapes in southern Anhui. Brilliant 5-D projection lighting inside the cave artfully blends natural scenery with modern digital technology, delivering a refreshing and immersive sightseeing experience for overseas guests.