a5e92e79__Deals__Princess_Vacations_and__Visa_Requirements
[Traveling To...] Vietnam YES [Visa Requirements] 
A visa will be issued upon the ship’s arrival and therefore you are not required to obtain in advance of the cruise. If you are participating in an overland tour, or ending your cruise in Vietnam, one passport size photograph is required. A visa fee will be applied to your stateroom account.
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Visa Requirements