Quang Ninh People's Committee has ordered all Ha Long Bay tours to publish their service charges in the local media.
This follows many complaints from tourists about disorganised tours and lack of transparency in fees charged.
To improve services and prevent losses to the industry and provincial budget, the committee told all boat-tour agents to publicise their prices in the media.
The people's committee also asked relevant agencies to conduct a market survey and recommend prices for tours and overnight stays on Ha Long Bay.
These rates will be fixed for at least three months and published on the provincial website and Quang Ninh on-line newspaper.