Kids 12 and under sail free as third and fourth guests with Royal Caribbean International when you book between April 2 and May 4, 2026, on select sailings of three nights or longer departing on or after April 3, 2026; the offer gives $0 cruise fare for qualifying children sharing a stateroom with two full-fare guests, applies automatically at checkout, can be combined with select promotions, excludes certain peak and holiday sailings, and is valid on new bookings only, subject to availability and change.