*Terms & Conditions apply. Valid on select ship voyages only. Offer is valid on new bookings only aboard the Greg Mortimer, Sylvia Earle or Douglas Mawson which must be booked and deposited by 31 December 2024. Promotion is subject to availability at the time of booking and capacity controlled. The promotion is only available in conjunction with the back to back voyage discount or the loyalty program offer, and not available with any other offer. The promotion can be withdrawn at any time and is not redeemable for cash. Normal booking terms and conditions apply. To confirm your booking, a completed booking form and non-refundable deposit of $2,500 pp in the booking currency is required within 7 days of reserved berth/s. Additional terms and conditions may apply. Please see full terms and conditions.

^Terms & Conditions apply. Additional 5% discount valid on both voyages but two voyages must connect back to back in terms of dates to be eligible. Offer is valid on new bookings only aboard the Greg Mortimer or Sylvia Earle. Promotions are subject to availability at the time of booking and capacity controlled. The promotion is only available in conjunction with early bird voyage discount or the loyalty program offer, and not available with any other offer. The offer can be withdrawn at any time and are not redeemable for cash. Normal booking terms and conditions apply. Please see full terms and conditions.