There are some perks in traveling on Royal Caribbean South America cruises if you reserve the suites or deluxe rooms since they offer additional luxury at an affordable price. Guests staying in Royal Caribbean cruises from Rio De Janiero suite rooms have access to priority boarding and a variety of perks throughout their journey. Being in a suite on South America cruises on Mariner of the Seas is just like experiencing first class traveling on a flight. You can select the suits or deluxe rooms after reviewing the Mariner of the Seas best and worst cabins.