Royal Caribbean International is known for its innovative and unique features that make it stand out in the cruise industry:

1. Royal Promenade: Many Royal Caribbean ships feature a Royal Promenade, a lively and bustling street-like area with shops, restaurants, bars, and entertainment, creating a vibrant hub on the ship.
2. Central Park: Oasis-class ships have a Central Park area with real trees and plants, providing a serene, open-air space right in the middle of the ship.
3. AquaTheater: These amphitheaters at the back of certain ships host high-dive shows, aerial performances, and aquatic spectacles, combining entertainment and breathtaking ocean views.
4. FlowRider: Royal Caribbean introduced the FlowRider surf simulator, where passengers can learn to surf or boogie board on the deck of the ship.
5. RipCord by iFLY: Some ships offer skydiving experiences in a controlled wind tunnel, providing the sensation of freefall.
6. North Star: This glass capsule on some ships extends over the side of the ship and offers 360-degree views from high above the sea.
7. Virtual Balconies: Interior cabins on certain ships feature large LED screens that display real-time views of the ocean, giving guests the feel of an ocean-view cabin.
8. Bionic Bar: You can order your favorite cocktail from robotic bartenders that mix and serve drinks on some ships.
9. Robotic Entertainment: Some ships feature robotic bartenders and servers in the Bionic Bar and the Two70 lounge, offering a unique and futuristic experience.
10. Dynamic Dining: Royal Caribbean offers a choice of dining options, from traditional dining rooms to specialty restaurants, allowing guests to tailor their dining experience to their preferences.
11. Ice Skating Rinks: Some ships have ice skating rinks where passengers can enjoy skating and professional ice shows.
12. Voyager Class Sports Amenities: These ships often feature rock climbing walls, mini-golf courses, and ice skating rinks for active passengers.

These are just a few of the distinctive features that make Royal Caribbean a popular choice for cruise enthusiasts, offering a wide range of activities and experiences for guests of all ages.