The resort in Xuan Thanh Commune, 50 km from Ha Tinh City, the capital town of the central province, opened in April by tourism company Hong Lam Xuan Thanh.
The rooms are in an area of more than two hectares of casuarina forests grown to protect the coast, with their fronts facing the sea.
The inside of the 15-square-meter containers is covered in plaster, and each has a bathroom. A room costs VND600,000-700,000 ($26.03-30.37) per night.
A group of children play in the resort.
Visitors can order meals at the resort, or have seafood at local restaurants nearby.
"A room is suitable for a couple and a small child," Thanh Huyen, 32, a Ha Tinh local said. "It is a new travel experience to hear the waves lap in the evening and the breeze blowing amid the rows of casuarina trees in an idyllic setting."