A 90km drive south of Hanoi will lead you to Ninh Binh, the site of the one capital city of ancient Vietnam before Hanoi took its leading role in 11th century. The area is featured by lots of well-known sceneries, which include Tam Coc Caves and Hoa Lu ancient capital with the old temples dedicated to King Dinh & King Le reigned in 10th century. The visit in Ninh Binh starts by a boat trip in Tam Coc where spectacular limestone karsts jut out from the green paddy fields reminding about Guilin (China) and Halong Bay of Vietnam, which gives this scenery the name "Halong-bay-on-land". Further discovery in Ninh Binh will be continued in the site that used to be the kings' palace in 10th century and now famous for the wooden relieves of the shady Dinh and Le temples. In the afternoon, arrive Mua Cave and start an amazing trek up to the top of Ngoa long mountain for watching the spectacular rice valley with sprecious view of the nature before heading back to Hanoi.