On the second day, head to the Con Son-Kiep Bac Historical Site, located about 20 kilometers from Hai Duong City. This historical complex is home to several ancient pagodas and temples, including the Con Son Pagoda and the Kiep Bac Temple. Explore the beautiful architecture and learn about the historical significance of these sites. Take a peaceful walk around the surrounding gardens and enjoy the serene atmosphere. Don't forget to try the local specialty, Con Son sticky rice, known for its unique flavor.