*This offer is valid for new bookings made between 1st and 31st August 2017 (inclusive) only. Prices shown when booking do not include the discount. The discount amount will be added to your booking once the promo code has been entered and will be confirmed before purchase. Single cabin full fares will be discounted by 50 per cent when the promo code is applied. The offer may not be used in conjunction with any other offer, is subject to availability and may be withdrawn at any time. Offer applies to all 2017 River Cruises aboard Olympia and Sound of Music except Christmas Market, Christmas Season and New Year River Cruises.