Discover Foshan's hidden gem Shiyan Yan (Stone Swallow Cave), where nature sculpts a surreal underworld! These ancient limestone caverns dazzle with stalactites gleaming like alien constellations when sunlight filters through. Crawl through narrow passages to uncover subterranean rivers and million-year-old marine fossils—a paradise for archaeology buffs and Instagram explorers. Pro tip: Wear grip shoes for this time-traveling adventure into Earth's belly!




















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