Seabourn Ovation: 21-Night Transatlantic from Barcelona

Barcelona cruise port is the busiest in the Mediterranean, handling millions of passengers a year across multiple terminals. The city behind it earns that traffic.

Palma de Mallorca cruise port is one of the busiest in the Mediterranean and the main cruise gateway to the Balearic Islands. Palma sits on the south coast of Mallorca, the largest of the Balearics, about 250 kilometers south of Barcelona.

Cartagena is a historic port city of about 215,000 people on Spain's southeastern Mediterranean coast, in the Murcia region. Founded by the Carthaginians in 227 BC (as Carthago Nova), the city has been contested by Carthaginians, Romans, Moors, and Spanish kingdoms, and its layered history shows in the archaeological sites scattered through the compact center.

Tangier sits at the northwestern tip of Africa, where the Mediterranean meets the Atlantic and Morocco looks across the Strait of Gibraltar at Spain, just 14 km away. The city has about 1.

Cadiz is the actual cruise port marketed as "Seville (Cadiz)" by cruise lines because Seville, Spain's fourth-largest city, is the primary day-trip draw from this port. Cadiz itself is one of Europe's oldest continuously inhabited cities, perched on a narrow peninsula jutting into the Atlantic on Spain's southwestern coast.

Lisbon cruise port is one of the most atmospheric arrivals in Europe. Ships sail up the Tagus River past the 25 de Abril Bridge (a near-twin of San Francisco's Golden Gate) and the Christ the King statue, with the city rising up on seven hills to the north.