Royal Caribbean International plans to attract millennials in at least two ways -- through lots of digital connectivity and travel destinations.

"Literally you’ll be able to go on our app and you can order your drinks, you can order another pillow in your room, you can tell us you don’t like the steak, you can chat to all of your friends, you can connect to the company in any way you want, you can make your bookings, etc.," chief executive Michael Bayley said during Friday's press conference aboard Symphony of the Seas.

"By the end of next year, that app should be fully implemented on all of the ships."

Currently, the app, which also shows deck plans and daily activities, is available on 10 of Royal Caribbean International's 26 ships.

"We think it is a good feature for all our customers but particularly the millennials," Bayley said.

He also said Royal Caribbean International, owned by Royal Caribbean Cruises, caters to this massive demographic -- US' largest at 83 million -- by offering loads of adventure through destinations all over the world.

"Destination is important to millennials and Royal Caribbean has a vast number of destinations," he said.

"If you’re really an adventurer, you can travel anywhere in the world with Royal Caribbean. You get the safety and surety of a great brand that’s a true quality operation and you can go anywhere because we pretty much go everywhere in the world."