Realize that for a B2B, you can take your 2 allotted bottles for each half of the trip. It will be collected on boarding the first cruise and returned to you for your second.
Question: Am I allowed to bring alcohol onboard a Royal Caribbean cruise ship?
Answer: Guests are not allowed to bring beer or hard liquor onboard for consumption or any other use.
Alcoholic beverages seized on embarkation day will not be returned. Security may inspect containers (water bottles, soda bottles, mouthwash, luggage etc.) and will dispose of containers holding alcohol. Guests who violate any alcohol policies, (over consume, provide alcohol to people under the legal drinking age, demonstrate irresponsible behavior, or attempt to conceal alcoholic items at security and or luggage check points or any other time), may be disembarked or not allowed to board, at their own expense, in accordance with our Guest Conduct Policy. Guests who are under the permitted drinking age will not have alcohol returned to them. Please Note: All guests must comply with TSA guidelines for transporting liquids.
On boarding day, guests may bring onboard two (2) 750 ml bottles of personal wine and champagne per stateroom in their carry-on luggage. If more than two bottles of wine and champagne are brought onboard, including any alcoholic beverages purchased in ports-of-call or in our onboard shops, they will be stored by the ship and delivered to your stateroom on your last day onboard.
Guests on consecutive cruises may bring two (2) 750 ml bottles of personal wine and champagne per voyage, per stateroom. Additional bottles will be stored by the ship and two bottles at a time will be delivered to the stateroom on the first day of each new voyage. Guests bringing more than two bottles at the start of the first sailing should have documentation for any consecutive sailings available to share with security on boarding day.