Located in Ninh Binh province, 100 kilometers southeast of Hanoi, Hoa Lu and Tam Coc are two of the most picturesque spots in the north. For 41 years, from 968 to 1009 CE, Hoa Lu was the ancient capital of Vietnam. Nearby Tam Coc is often referred to as "Ha Long among the rice paddies." Visitors are conveyed by rowboat along the peaceful Tam Coc stream past green fields and the feet of mountains into the mouths of caves, where they encounter new surprises, like stalactites and stalagmites that shimmer like gemstones just inches from the water.