The name “Thung” in Vietnamese means a depression inundated with water and surrounded by mountains. In Thung Nang, locals used to plant rice seedlings, but now, due to the increase in tourism, the local government has built a dam to prevent drainage and opened the tourist site all year round.

Thung Nang resembles Tam Coc Bich Dong with its caves, grottos and boat travel, but it’s considered wilder and is noticeably less crowded. Thung Nang is only five minutes by motorbike from Bich Dong.

To reach Thung Nang from Thach Bich wharf, tourists have to travel nearly three kilometers on a boat. During the ride, travelers will have a chance soak up the surrounding beauty. True to its name, Thung Nang is a water valley abundant in sunlight and breathtaking views.

Sitting on the boat and going through two grottos, travelers get a first-hand look at the local fauna and flora that Thung Nang is renowned for.

While traveling by boat, tourists can ask the captain to stop anywhere. It is highly recommended to park in front of the caves for a quick photo break. The grottos inside of the mountains and the stalactite deposits are a tantalizing sight, and if curiosity gets the better of you, follow these natural landmarks to nearby valleys.

The best time for traveling is February, March and April. In other months, the high water levels in the grottos sometimes prevent visitors from enjoying the exquisite views.

A short visit to Mieu Son Lam (Forest and Mountain Shrine) offers visitors a unique glimpse into the world of antique shrines, which are seamlessly nestled into their lush surroundings.

The price for each person for an hour-long boat ride is VND10,000 (US$0.50).