The show looks back at the golden age of cruising from 1925 to 1970, featuring photos of conga lines, shark fishing, Victorian fancy dress and sumptuous banquets.
The 48-mile (77km) Panama Canal connects the Caribbean Sea to the Pacific Ocean. Travelling from one end to the other can take a whole day. This boat’s crewmen seem to be enjoying the view.
Do you know of more Panama culture in London? If so, let us know for our World in London challenge.
Waterline is at the National Maritime Museum until April. Admission is free