On your final day in Dien Bien, immerse yourself in the natural beauty of the region. Start by visiting the Pu Sam Cap Cave, known for its impressive stalactites and stalagmites. Explore the cave and marvel at the unique formations. Next, head to the Pa Khoang Lake, a picturesque spot surrounded by lush greenery. Enjoy a boat ride on the lake and take in the serene atmosphere. If you're feeling adventurous, you can also try kayaking or fishing. In the afternoon, visit the Ban Phu Citadel, an ancient fortress that offers panoramic views of the surrounding countryside. Take a leisurely hike around the area and enjoy the fresh air. End your trip with a visit to the local markets, where you can buy traditional handicrafts and souvenirs to remember your time in Dien Bien.