After breakfast, we'll spend 1.5 hours on a paddle boat among limestone mountains and cliffs, admire the colorful floating rice fields, and pass through three grottos: Hang Ca, Hang Hai, and Hang Ba. We'll hop on our bikes, encounter stunning views of mountain karst, ride through rice paddies and small villages, and experience the life of villagers in Tam Coc and Bich Dong. The bike ride is just 10km but it's great time for endless photo opportunities. Make a short climb to Hang Mua, which is the most attractive viewpoint of Ninh Binh. At the highest peak, you will see a panorama of the Valley. We'll return to the hotel after lunch and rest until dinner, as we have a late checkout. Board on a night train to Hue.