Website URL: http://www.brittany-ferries.co.uk/help/amend_cancel/cancel_holiday

How do I cancel my Brittany Ferries holiday?

If the holiday booking was made directly with Brittany Ferries (via our reservations department or website) and you wish to cancel your holiday at any time after the contract has taken effect you will need to advise us in writing at the address below. Please include your name and booking reference.

Brittany Ferries
Holiday Administration Department
The Brittany Centre
Wharf Road
Portsmouth
PO2 8RU

If you have booked through an travel agent cancellation will be by whatever means they stipulate.