Tam Cốc-Bích Động is a popular tourist destination in north Vietnam and part of the Tràng An Scenic Landscape Complex UNESCO World Heritage site. It is located in Ninh Binh province, near the village of Tam Cốc. The area is nicknamed "the inland Ha Long Bay". The closest city is Ninh Binh.

Tam Cốc, literally "three caves", consists of three natural caves (Hang Cả, Hang Hai, and Hang Ba) on the Ngô Đồng River. Tourists are taken in small boats along the river from the village of Ván Lám, through rice fields and limestone karsts, through the caves, and back.

For more information visit:  https://nomadisbeautiful.com/travel-blogs/tam-coc-vietnam/
See also: https://hanoiexploretravel.com/things-to-do-ninh-binh/travel-guide-in-tam-coc