I am not even kidding. I did the Bai Tu Long Bay tour in November 1st week of 2025.
and can now say pretty confidently that Bai tu long is miles ahead of halong bay!
I mean there is not even a competition lol
Halong is only good if you are looking for a super cheap day tour and want to do touristy things. Bai Tu long is just out of the world with way better water clarity, no large groups, more time to spend peacefully and not feeling like a tourist in a group tour…
Let me know if anyone has more questions, I can do AMA here