Do I need to bring my passport travelling with Stena Line ferry? All travellers need to have a valid passport at all times. Related articles Is the pool open during the low season? Can I reschedule my ferry ticket? (Stena Line) Is the ticket with Forsea ferry an open ticket? Do I have to book food for the ferry while booking, or can I add it afterwards? I have booked a ferry and accommodation - can I change vehicle type?