Overview
The Detian Transnational Waterfall (Chinese: 德天瀑布; Vietnamese: Thác Bản Giốc) is a crown jewel of Guangxi’s natural wonders, straddling the border of China’s Daxin County and Vietnam’s Cao Bang Province. Recognized as a AAAAA-rated scenic area (China’s highest tourism classification), it spans 200 meters wide with a 70-meter vertical drop, forming a three-tiered cascade fed by the Guichun River.
Geographical Significance
- Transnational Uniqueness: Shared with Vietnam’s Ban Gioc Falls, Detian is part of a singular hydrological system, ranking as the 4th largest transnational waterfall globally after Iguazu, Victoria, and Niagara Falls.
- Hydrology: The Guichun River loops through Vietnam before returning to China, creating the waterfall’s dramatic plunge. Annual water flow averages 55.2 m³/s—triple that of China’s Huangguoshu Falls.
Natural Features
- Three-Tiered Structure:
- Upper Tier: A sheer 30-meter drop into a turquoise "sky pool," generating misty rainbows at dawn.
- Middle Tier: A gentler slope through limestone channels, ideal for close-up photography.
- Lower Tier: A thunderous 40-meter finale into the Longtan Pool, where bamboo rafts ferry visitors to the base.
- Seasonal Variations:
- Summer (June–November): Peak flow transforms the falls into a roaring curtain.
- Spring: Blooming kapok trees add fiery red accents.
- Winter: Serene, multi-stranded flows create ethereal ice-blue ribbons.
Visitor Experience
- Activities:
- Bamboo Rafting: Drift within meters of the falls (¥80/person).
- Viewing Platforms: Panoramic vistas from Phaodun Mountain or the "Sky Mirror" glass walkway.
- Cross-Border Market: Shop for Vietnamese crafts near Boundary Marker No. 53.
- Accessibility:
- From Nanning: 3-hour shuttle (¥120 round-trip) or private car via G7211 Expressway.
- Entry Fee: ¥80/adult; open 8:00–17:00.
Cultural & Ecological Highlights
- Film Fame: Featured in The Journey of Flower (2015) and Once Upon a Time in China.
- Karst Ecosystem: Surrounding forests host rare birds and Zhuang ethnic villages with stilt-house homestays.
- Awards: Named "China’s Most Beautiful Waterfall" by National Geographic (2005).
Nearby Attractions
- Tongling Grand Canyon: 37 km away, with a 188-meter subterranean waterfall.
- Mingshi Pastoral: "Little Guilin" rice terraces and cycling trails.
Pro Tips
- Best Time: Visit at 7:00–9:00 AM for rainbow sightings and fewer crowds.
- Dress Code: Waterproof gear for rafting; sunscreen for open trails.
Detian’s blend of raw power, cross-border mystique, and Zhuang culture makes it a must-see for global travelers exploring China’s southwestern frontier.

