You are not permitted to bring any alcohol on board for personal consumption. Duty-free tax-free and personal alcohol purchased onshore must be surrendered by passengers at embarkation or prior to boarding at any port. Duty and tax-free alcohol is also available for purchase on board and will be held under bond and returned at disembarkation in the final port of call.
All luggage, including hand and check-in will be x-rayed at embarkation and disembarkation. You must declare to Customs all amounts of alcohol in excess of the local Customs limits.