The Crystal Serenity's capacity was reduced from 1,070 guests to 980 in a 2018 drydock by consolidating space to create 36 Seabreeze Penthouses and two Seabreeze Penthouse Suites. The Stardust Supper Club restaurant, with room for 108 diners, was created, and the Palm Court got a redo that includes more tables for two. It remains the larger of Crystal's two luxury ships.