The ships in Royal Caribbean's fleet are great options for families cruising with children, but the Oasis-class ships -- Oasis of the Seas, Allure of the Seas, Harmony of the Seas and Symphony of the Seas -- stand head and shoulders above the rest. These ships are the largest cruise ships in the world, and they're brimming with family-friendly activities, amenities and entertainment options that are sure to keep your kids happy throughout your entire sailing.

The Adventure Ocean kids clubs on Oasis-class ships are expansive, with designated areas for toddlers, kids, tweens and teens. Amenities include a theater, arts and crafts workshops, science lab, video arcade and DJ academy. Plus, there are separate spaces for children ages 3 to 5, 6 to 8, 9 to 11 and 12 to 17, complete with after-hours options.

There are even facilities for babies and young toddlers; the Royal Tots and Royal Babies programs offer interactive parent-and-child activities and classes, as well as drop-off babysitting services so that parents can have a bit of freedom to explore these massive ships sans children.

But the kids clubs are just the start of the fun for kids onboard Oasis-class ships. Each ship features multiple swimming pools, as well as a 3D movie theater, rock climbing wall, ice skating rink, surf simulator, carousel and zipline, among other amenities.

The ships also offer varied dining options, including kid favorites like New York-style pizza, as well as burgers and dogs from Johnny Rockets.

Teens might appreciate the special teen treatments available at the spa.

If your family needs a bit more space, there is no shortage of family cabins on Oasis-class ships. For even more space, you can book a loft suite or a Royal Family cabin that accommodates up to eight passengers. Those with larger budgets might even consider booking the Ultimate Family Suite on Symphony of the Seas, which features in-room games, a LEGO wall and a slide.