Torstein Hagen-owned Viking Cruises has launched a bid to complete the longest-ever continuous cruise voyage.
The Ultimate World Cruise itinerary covers 245 days, six continents, 51 countries and 111 ports.
Guests boarded the 930-passenger Viking Sun (built 2017) in London this week to fully circumnavigate the globe. It is due back in the UK capital in May next year.
Viking will attempt to set a Guinness World Record title.
