The adults-only area, called Serenity, is just one component of Carnival's "Evolutions of Fun" initiative, through which the line is updating its eight Fantasy-class vessels to the tune of $250 million. Other enhancements include the new WaterWorks water parks, fully remodeled staterooms and bathrooms, and overhauled spa and children's facilities.
The adult retreat concept was actually introduced by Princess last year onboard Crown Princess; the Sanctuary on that ship (and younger sibling Emerald Princess) is an adults-only relaxation area located near the spa. The Sanctuary was so popular during Crown's first few sailings that Princess ultimately established a fee for usage: $15 per person, per half day. There's no fee in place as of yet to use Carnival's Serenity.
Serenity will feature plush chaise lounges and chairs, umbrellas for relaxing in the shade, two private whirlpools, and waiters on hand for regular bar service. Though there's no special dining option (Princess' Sanctuary features a spa menu), the Lido Restaurant is nearby, and food can be brought back. On Carnival Inspiration, Serenity will be located in an open deck area aft where the children's pools currently reside; they're being phased out during the refurbishment and replaced by WaterWorks.
At this point in time, there aren't specific hours of operation for Serenity. A spokesperson for the line tells us that it's believed it will be utilized primarily during the daytime, which is when you'll be able to order drinks, and when staffers will be on hand to make sure no wee ones sneak in. However, because this is a new feature, the line will be monitoring guests' interest in using this area in the evening and make changes and/or policies as appropriate.
--by Melissa Baldwin, Senior Editor