The air-conditioned cinema and theatre of the Ocean Monarch cruise ship in 1951. Jimmy Sime/Getty Images People could also exercise in group classes, like this aerobics class on a cruise ship in 1961.

All aboard! Vintage posters advertising the golden age of ocean cruising set to go on display for the first time in Liverpool. By SARAH GORDON . Published: 06:39 EDT, 19 March 2014 | Updated: 10: ...

These fascinating vintage photographs will no doubt suggest to some that today's 'floating city' cruise ships don't have the romance or glamour of the passenger ships of yesteryear.