It is billed as the world’s longest continuous cruise، daily mail reported.
But to sail around the globe in 245 days you’ll need at least £66،990.
Departing Greenwich in August next year and not returning until the following May، the high seas odyssey will call at 113 ports in 59 countries on every continent except Antarctica.
The luxury Norwegian-owned Viking Sun and its 930 passengers begin with stops in Ireland and Norway before crossing the Atlantic to Greenland.
The price includes business-class fares for anyone flying into London and all meals، which can be taken in a choice of eight restaurants.
Described as the ‘thinking person’s cruise’، there are on-board classical musicians، lectures in history and the arts، and cookery classes.
The ship also offers ‘serene Scandinavian spaces’، and privileged access to ‘experiences’ at the many destinations guests visit.
The cheapest fare of £66،990 per person means a couple travelling together will pay a minimum of £133،980 – or £546.86 a day.
Travellers have two pools to use and، given the fact Viking is Norwegian، a thermal spa that includes a snow grotto، where snowflakes fall though chilled air.
The biggest cabin is the Owner’s Suite، which has already been booked، despite costing £194،390 per person or £388،780 for two.
The trip ends with a passage through the Suez Canal to the Mediterranean، then up the west coasts of Spain and Portugal back to the UK.
The eight-month journey is Viking’s third voyage around the globe and will nearly double the length of its previous world cruises.
Viking chairman Torstein Hagen said: ‘Our World Cruises offer guests the rare opportunity to unpack once and explore dozens of the best destinations on Earth، at a value that is unprecedented in the travel industry.’
Mr Hagen’s view of ‘value’ may differ from the millions of Britons who expect to spend £2،000-£3،000 on their annual summer holiday.