If you live in the Uk and want to travel to Spain one of your best option is via Brittany Ferries. This is an excellent way to travel, avoiding long check in lines at the airport while enjoying a mini cruise. Ships leave every Sunday and Wednesday from Plymouth and arrive in Santander.
You will enjoy a relaxing ride and arrive fresh for your adventure in northern Spain. You can opt for package deals, with hotel included. Once in Spain you will be able to see beacutiful paradors such as Cangas de Onis, Cervera, Limpias etc..
source Brittany Ferries