Alas, not an option for those of us who live on an island off the coast of Europe, not unless you want to drive down to the Channel Tunnel and back up. (In US terms, something like going from Washington to New York via Florida.) Ten years ago there were still excellent car and passenger ferries from ports all up and down the English Channel, but these days they only carry freight. Maybe in another ten years, when airlines have finally had to pay a realistic price for their fuel, the ferries will be an alternative again.