Delve into a subterranean wonderland at Nguom Ngao Cave, one of Northern Vietnam's most impressive and accessible cave systems, located just a few kilometers from the magnificent Ban Gioc Waterfall in Cao Bang province. Discovered in the 1920s and opened to tourists later, this vast limestone cave offers a fascinating journey through chambers adorned with stunning natural formations.

Meaning "Tiger Cave" in the local Tay language, Nguom Ngao stretches for over two kilometers, though visitors typically explore a well-lit main section of about one kilometer. Inside, marvel at the incredible variety of stalactites and stalagmites, shaped by centuries of dripping water into fantastical forms resembling terraces, pillars, lotus buds, and mythical creatures. The cave's different chambers offer unique acoustic properties and visual spectacles.

Exploring Nguom Ngao Cave provides a cool respite and a fascinating contrast to the open-air beauty of Ban Gioc Waterfall. The well-maintained path and lighting make it easily navigable, allowing visitors to fully appreciate the intricate details and grandeur of the underground formations within the Non Nuoc Cao Bang Geopark. It's an essential addition to any itinerary focused on Cao Bang's natural wonders.