10. Adventure Ocean

Allure of the Seas
Royal Caribbean

This city-at-sea-for-kids occupies a massive space at the forward end of Deck 14. Enter on Kids Avenue and choose your destination: three separate spaces for three age groups between ages 3 and 11, plus a drop-off nursery, video arcade, science lab, art studio, theater for performances, and even a cool workshop space where the whole family can scrapbook or make jewelry together.