Offer valid for new bookings as of January 4, 2023 to April 3, 2023 for select voyages. Solo travelers will be able to book double-occupancy cabins for the price of a single berth. Applies to voyage full fare only; cabins limited. Bookings made before or after the promotion period will not qualify for the savings. Must quote promo code(s) and provide passengers’ full names at time of booking. Only combinable with Pay-in-Full Savings or the Shackleton Club past passanger discount. Excludes triple and single cabins. Quark Expeditions® has the right to limit, change or discontinue promotion at any time without notice. No cash value.. Brochure Terms & Conditions apply.