danube east & west (2028) vienna to bucharest | 18 days between the imperial monuments of vienna and the breathtaking coastline of the black sea, the distinct wonders of seven danube river nations are ready to enchant you. view the gilded works of gustav... ships: s.s. emilie, s.s. helen countries: austria, bulgaria, croatia, hungary, romania, serbia, slovakia river: danube from $8,399* per person based on double occupancy. *from price based on april 7, 2028 itinerary. available on a limited number of staterooms. single supplement applies. view itinerary dates & pricing