Tu San Abyss is located at the foot of Ma Pi Leng (Ha Giang province) - one of the most imposing, dangerous and steep passes in Vietnam. Here, the Nho Que river winds along the mountains with emerald green water all year round. The river originates from Yunnan (China) and flows into Vietnam at the northernmost point of Lung Cu commune, Dong Van district, Ha Giang province.
With cliff height of 800m, 1.7km long and nearly 1km deep, Tu San abys alley is known as the deepest canyon in Southeast Asia, a unique wonder of Dong Van rocky plateau.
In 2009, the Ministry of Culture, Sports and Tourism classified this site as a national heritage site, and the Nho Que River was honored as one of the unique tectonic valleys of Vietnam.
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The panorama of Tu San abys alley seen from above. Nho Que River is beautiful at all angles.
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The path down the alley is enough to challenge travelers. From the parking lots, visitors have to walk 800m down to the boat station.
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There are about 40 boats to serve tourists.
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Since the Nho Que hydroelectric dam was built, the water does not flow rapidly. Tourists can row kayak to admire the Tu San abys alley for about VND300,000.
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Pham Hai

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