Tam Cốc-Bích Động is a popular tourist destination near the city of Ninh Běnh in northern Vietnam.

The Tam Cốc (“three caves”) portion is a three-hour excursion by small boat along the Ngô Đồng River, beginning at the village of Van Lam and proceeding through a scenic landscape dominated by rice fields and karst towers. The route includes floating through three natural caves (Hang Cả, Hang Hai, and Hang Ba), the largest of which is 125m long with its ceiling about 2m high above the water. The boats are typically rowed by one or two local women who also sell embroidered goods.