Lee uploaded the photos from his stay at the InterContinental Danang Sun Peninsula Resort on Saturday.
The resort has previously accommodated various notable guests, including Microsoft’s co-founder Bill Gates and South Korean celebrities Son Naeun and Han Sunhwa.
During the trip, Lee enjoyed dining at a high-end restaurant within the resort.
The restaurant, located on the resort’s top floor, offers a menu that includes traditional dishes from various regions of Vietnam, such as Quang noodles, Hoi An chicken rice, and Saigon-style pancakes.
Located in the natural setting of Da Nang’s Son Tra Peninsula, the resort is surrounded by wild monkeys, a scene Lee captured and shared from his room overlooking the sea.
The resort offers rooms ranging in price from VND10 million-100 million (US$397-$3,966) per night.
Throughout his trip, Lee was frequently seen wearing the traditional Vietnamese conical hat.
Lee, 35, began his career in 2005 as a runway model, making history as the youngest male model to walk at Seoul Fashion Week that year. He started gaining public recognition from his role in the 2012 TV series “School 2013.”
Scenes of monkeys outside Lee’s room at the InterContinental Danang Sun Peninsula Resort.