On your final day, immerse yourself in the local culture and indulge in the delicious cuisine of Thai Nguyen. Start your day by visiting the Museum of Vietnamese Ethnic Culture, which showcases the diverse ethnic groups of Vietnam through exhibits, artifacts, and traditional costumes. Next, explore the Dong Dang Border Gate, a historical landmark that marks the border between Vietnam and China. Enjoy the scenic views and learn about the significance of this border crossing. In the afternoon, take a cooking class and learn how to prepare traditional Vietnamese dishes. Visit a local market to buy fresh ingredients and then join a hands-on cooking session with a local chef. Finally, end your trip with a feast of authentic Vietnamese cuisine, savoring dishes like pho, banh mi, and fresh spring rolls.