Can the price of a cruise change?

Royal Caribbean International reserves the right to change, whether via an increase or decrease, any published rates, including cruise rates and airfare charges, without prior notice. We reserve the right to impose on any existing booking or new bookings (whether paid in full or not) a supplement for fuel or other matters without prior notice as provided in our Passenger Ticket Contract. In addition, we reserve the right to pass through any third party imposed fuel or other surcharges, also without prior notice, The guest will remain liable for any applicable taxes, fees or surcharges that may be assessed by any governmental or quasi-governmental agencies.