National Geographic-Lindblad Expeditions first UK wave sales promotion offers a range of consumer incentives.
Credits of up to £1,570 per passenger, solo discounts of up to 40% and an additional 10% off when paying in full at time of booking feature.
The offers are available until March 4 and are valid on most 2025 and 2026 departures, including the Arctic and Antarctica, Iceland, the Galapagos, Mediterranean, Europe, Baja California and Central America.
Expedition credits will be deducted from the cabin fare and can be used to help off-set the cost of flights or hotels.
On sailings of eight days or less, passengers will each receive £390 credit; £785 per passenger on voyages of nine to 14 days in duration; and £1,570pp on journey of 15 days or more.
Single travellers are offered up to 40% discounts on solo cabins.
Passengers ready to commit will be rewarded with up-to 10% additional savings when paying in full at time of booking. Non-refundable payment in full is due at the time of booking to qualify for the discount.