We just got of Navigator this morning. Brought two bottles onboard in hand-luggage (per cruise line rule). They examined the bottles at a table right after we went through security (looked at bottles, checked corks, etc.). We brought the bottles to MDR expecting to pay corkage (which is totally fine and what we planned on) but were not charged either night. This was LA/Long Beach sailing. Since this is our first RC cruise (we have paid corkage on another line), don't know if this is typical or not. In any case, we always expect to pay corkage and if we don't it's a nice surprise. 😊