Royal Caribbean pushes the limits of what’s possible at sea. Over the last 40 years, they have strived to provide the most innovative ships, dining options, entertainment, technology and kid’s programming. Their Oasis-class ships offer seven “neighborhoods” (such as Central Park with real trees and plants, the Boardwalk with a full-size carousel, and the open air AquaTheaters for high diving shows). Across the fleet, guests can expect high-energy musical shows including real Broadway hits CATS and Mamma Mia! “Adventure Ocean” is an age-appropriate youth program making this cruise line great for families.