all cabins have a mini fridge stocked with sodas
Sirena is the only R ship with Reg Ginger & Tuscan Steak
menu
https://www.oceaniacruises.com/Documents/Menus/61698/Tuscan-Steak-Dinner.PDF
Even the insides have mini fridge
"Beautifully re-designed with a modern flair, these delightful private retreats boast 160 square feet of luxury. Highlights include a comfortable seating area, vanity desk, refrigerated mini-bar and plenty of storage. The ingenious use of space is complemented by the re-inspired decor."
They call it a mini bar but no alcoholic beverages are included except in the Top suites