The coastal city of Da Nang has become the first port in Vietnam at which international cruise ships can continue offering casino services while docked.

The Da Nang Department of Culture, Sports and Tourism held a press conference on Wednesday to urge municipal administrators not to take any action against cruise ships that keep their onboard casinos open while docked in Da Nang’s Tien Sa Port.

International cruise ships have traditionally shuttered their onboard casinos while docking in Vietnamese ports, but it’s not completely clear why. As quoted by Tuoi Tre News, the department’s deputy director Tran Chi Cuong told reporters that his office had found “no rules that require foreign ships to close certain services when docking in Vietnam.”

The intention behind the directive is to allow shipboard passengers the full range of their ship’s entertainment options if they choose not to disembark and explore their latest port of call. Cuong said the ultimate goal was to encourage more cruise lines to put Da Nang on their transit list.