For U.S. cruises and guests: Prior to booking, please consult all applicable U.S. Centers for Disease Control travel advisories, warnings, or recommendations relating to cruise travel, available at www.cdc.gov/travel/notices. If a certain threshold level of COVID-19 is detected onboard your cruise ship during your voyage, your voyage will be ended immediately and the ship will return to the port of embarkation, and your subsequent travel, including your return home, may be restricted or delayed. For cruises and guests worldwide: Health and safety protocols, guest conduct rules, as well as regional travel restrictions and clearance to visit ports of call, are subject to change without notice based on ongoing evaluation, public health standards, and government requirements. Onboard and destination experiences, features, itineraries and guest conduct rules vary by ship and destination and are subject to change without notice. Health and safety protocols, guest conduct rules, as well as regional travel restrictions and clearance to visit ports of call, are subject to change without notice based on ongoing evaluation, public health standards, and government requirements. Onboard and destination experiences, features, itineraries, and guest conduct rules vary by ship and destination and are subject to change without notice.