Offer Valid until 30 November 2016. Offer applies to all destinations. Excludes Horizon. Minimum duration 7 night duration unless specified. Offers are combinable with other offers up to a total discount of 15%. Offers can be withdrawn at any time. Subject to availability. 20% off 1-4 star boats departing18th Mar-7th April, 20th April-27th April, 10th May-17th May, 6th Oct-31st Oct 2017.