Transatlantic Crossings, linking the Old with the New World and some special places in between. Crossing the Atlantic on a true ocean liner is like sailing through history. These classic journeys evoke a different time, a golden era when travelers boarded elegant ships to traverse the Atlantic Ocean between North America and Europe. Most trans-Atlantic cruises are repositioning cruises. These cruises typically last 10 days or longer, calling to many exciting places on the way – Azores, Madeira, Lisbon, Seville, Canary Islands, and are ideal for people who love being on the open sea. Repositioning cruises are offered by many of the world's most popular cruise lines and take place in the autumn and spring, as ships relocate from one cruising region to another.