To see cross border restrictions during the online booking process look here:-
To view the CROSS BORDER or FERRY terms and conditions. At STEP2 of our 3 step online booking
process, alongside the car photo of your choice, there is a link entitled “IMPORTANT INFORMATION”.
Clicking on this link will open an additional smaller window, with the terms and conditions appertaining
to that particular car/supplier. Look under TRAVEL RESTRICTIONS
Try a few different suppliers as each supplier/vehicle type may have a different cross border rule.