One of his stops was the Nho Que River, known for its emerald water that winds through the Happiness Road. Happiness Road is a 200 km route connecting Ha Giang City to the upland districts of Quang Ba, Yen Minh, Dong Van, and Meo Vac.

Recognized as a Vietnamese Scenic Heritage Site in 2009, the river is considered one of Vietnam’s most unique tectonic valleys.

Visitors often take a boat trip along the river, heading toward the Tu San Canyon at the foot of Ma Pi Leng Pass.