The campaign, which runs until July 3, covers expeditions in Norway and the Arctic for 2018 and Antarctica in 2018-19 on the operator’s G Expedition vessel.
The 20% price cut applies to an 11-day Norwegian fjords trip from Tromsø to Bergen now starting at £2,159pp.
Meanwhile a saving of 15% can be made on G’s Realm of the Polar Bear eight-day round trip to the Norwegian town of Longyearbyen available from £2,252pp.
Customers can also secure a discount of 10% on select cabin categories for the operator’s 11-day round trip to Ushuaia leading in from £3,999pp.