Bai Tu Long Bay is in Northern Vietnam. It borders the better known Ha Long Bay which has similar scenery and many more tourists. Cruises to Bai Tu Long Bay leave from Hon Gai wharf (Cảng Hòn Gai) in the city of Ha Long. The islands of Bai Tu Long Bay can be reached by ferry from Cái Rồng port, approximately 60 km north of the city of Ha Long.
Bai Tu Long Bay is being promoted and developed as an alternative to the crowded Ha Long Bay. The new Van Don International Airport is poised to bring tourists directly to Bai Tu Long Bay.