For travelers who want a hassle-free vacation, an adults-only all-inclusive cruise is the holy grail. No kids taking over the hot tub or whining at dinner, and no nickel and diming to take away.
Serenity Adult Only Retreat. Somebody at Carnival knows just what you need, and it's pretty much exactly the Serenity Adult-Only Retreat. Look, you'll still be on the same ship as the kids, the hoopla, and all the Carnival-style excitement but you could easily forget, because when you’re at Serenity you could not be further from it all.
Jun 12, 2019 · While originally a millennial-only cruise line, U by Uniworld changed its age restrictions in 2018 and now offers river cruises in Europe to adults of all ages. They still focus heavily on younger adults in their branding and marketing, though, which sets them apart from other river cruise lines.
True Adults Only Ships Your safest bet if you're looking for adult cruises is to sail on a ship that doesn't allow any children onboard at all. Yes, adults only cruises do exist, but there aren't.