Silversea Cruises’ newest ultra-luxury ship, Silver Spirit, today welcomed guests aboard its maiden voyage, an 11-day “Holiday Spirit” cruise departing from Barcelona tomorrow and concluding in Lisbon after visiting Malaga, Gibraltar, Cadiz, Casablanca and Tangier. “The delivery of Silver Spirit is an important milestone for our company and represents our commitment to the development of the Silversea brand,” said Amerigo Perasso, Silversea’s president and chief executive officer.