In the Ninh Binh province of Northern Vietnam near is Tam Coc, which translates to English as three caves. The three caves are nestled in a scenic landscape of limestone cliffs and rice paddies, and the river winds through the region. The caves are called Hang Cả, Hang Hai, and Hang Ba, and they serve as the area’s main attraction. Guided boat tours take you to the caves and along the Ngo Dong River, which is often dotted with floating vendors capitalizing on the tourist visiting on a day trip from Hanoi.