Cruise back to the 1950s, before the days of low-cost air travel, and follow a teenager's life at sea in the luxury liners that sailed the world's oceans. From Southampton to Capetown on board a Union-Castle liner. And then to Rio de Janeiro and down to Buenos Aires on a Royal Mail Lines steamer. Cross the North Atlantic from Southampton to New York in under five days on Cunard's Atlantic Express liners Queen Elizabeth and Queen Mary, and lazily cruise...