Discounts of 20% are being offered by relaunched Swan Hellenic in the build up to the introduction of the first of three new ships in November.
The price cut applies to bookings made anywhere in the world by March 31 and apply to sailings in 2021-22.
The expedition brand marks its return in November with the maiden all-inclusive cruise by new 152-passenger ship Minerva on an Antarctic Polar Eclipse itinerary.
Additional market-specific offers, ranging from flights to on board spending, is being made available via the line’s website and its local offices and agents.
Passengers can cancel any cruise booked by the end of March up to 30 days prior to departure and receive a future cruise credit valid for two years.
Itineraries include the Antarctic, Pacific, Caribbean, Scotland, Nova Scotia, Greenland and eastern Russia.