This man made lake was a site where many indigenous people of Langbian high land made their homes. In 1984, the lake was emptied for renovation purposes. At the bottom of the lake, scientists found many relics belonging to the hill tribe that once lived in this area. Xuan Huong lake is shaped like the crescent moon. Visitors to Da Lat and the town's people use the lake as a place to meet and talk. The lake is also where many honeymooners come to visit.

Xuan Huong lake is the most beautiful lake in Da Lat. It is approximately 5 km2. In 1919 a dam was formed on a branch of Camly river creating a small lake. In 1923, another dam was built further down stream to create yet another lake. During a severe storm in 1932, both dams were destroyed. Between 1934-35, a larger dam was built of boulders (site of Ong Dao bridge today) below the sites of the two previous dam creating one large lake named Ho Lon or Large lake. Ho Lon was later renamed after Ho Xuan Huong, a famous vietnamese poet in the 17th-century.