17-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.

Malaga cruise port is the main gateway to Spain's Costa del Sol and Andalusia. The city sits on Spain's southern coast, about 130 kilometers west of Granada and 50 kilometers east of Marbella.

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.

Las Palmas de Gran Canaria is the largest city in the Canary Islands, a Spanish archipelago off the northwest coast of Africa. The city has about 380,000 residents and serves as a major embarkation port for Canary Islands cruises and a regular port of call on Atlantic, repositioning, and West Africa itineraries.

Santa Cruz de Tenerife is the capital of Tenerife, the largest of Spain's Canary Islands, located in the Atlantic Ocean about 300 km off the coast of Morocco. The cruise port sits in the heart of the city, directly adjacent to the commercial center and within walking distance of the main shopping street and waterfront.