One unique activity on this tour is the opportunity to explore the ancient capital of Hoa Lu, which was the political and cultural center of Vietnam in the 10th and 11th centuries. Visitors can see the remains of the royal palace, temples, and tombs of the emperors who once ruled here. Another unique activity is the boat ride through the Tam Coc caves, which are often referred to as the "Halong Bay on land." The caves are surrounded by towering limestone cliffs and offer breathtaking views of the countryside. Finally, the hike up to the Hang Mua viewpoint is a challenging but rewarding activity. Visitors must climb 500 steps to reach the top, but the panoramic views of the surrounding rice paddies and karst formations are well worth the effort.