To travel with Brittany Ferries in 2026, you primarily need a valid passport, as ID cards are no longer accepted for UK-EU travel post-Brexit. For passengers traveling with a vehicle, you must have your booking reference number and the vehicle’s original registration document (V5C); a "Green Card" is typically not required for EU driving, but you should check your insurance policy. If you are bringing a pet, you need a valid Animal Health Certificate (AHC) or an EU Pet Passport, and you must arrive at least 90 minutes before departure for check-in. Foot passengers should check in at least 60 minutes prior to sailing. Once you check in, you will be issued a boarding card that serves as your cabin key and contains your Wi-Fi access code. It is also recommended to pack a small "overnight bag" with essentials, as access to the car deck is strictly prohibited once the ship is at sea. Lastly, ensure you have appropriate travel insurance and, if driving, a UK sticker (formerly GB) on the rear of your vehicle to comply with international regulations.