Bai Tu Long Bay lies to the northeast of Halong Bay, sharing the same UNESCO World Heritage-listed limestone landscape while remaining the least-crowded of the three bays. Towering karsts, hidden caves, and emerald water make it a favorite for travelers who want a more remote, untouched Halong Bay experience.
Key Bai Tu Long Bay attractions include Vung Vieng Fishing Village, one of the best-preserved floating villages in the area, and Thien Canh Son Cave, which opens onto views over the tranquil Cong Dam Area lagoon. Cap La Island rounds out the list, known for quieter swimming spots well away from the more crowded routes in Halong Bay itself. Because Bai Tu Long Bay sits further from Halong City, it suits overnight cruises of two nights or more, giving enough time to reach these attractions at an unhurried pace.