Norwegian Cruise Line is rolling out special offers, from free airfare for the second traveler in a cabin to 30% off all voyages worldwide and newly enhanced CruiseFirst certificates.

The line’s Presidents’ Day Sale reduces fares on all ships by 30% and gives all five ‘Free at Sea’ offers including open bar, specialty dining, shore excursions credits, free Wi-Fi and, on select sailings, children sale free.

Deposits are reduced, too.

Plus, free airfare for the second traveler in a cabin applies when the first purchases a full promotional airfare in the same reservation. This offer is valid on cruises longer than four nights when booked at least three months in advance.

Enhanced CruiseFirst certificates

From Feb. 10-19, travelers can receive a $500 value CruiseFirst certificate for $250. They’ll also get three years from the purchase date to apply their certificate to any new reservation across NCL’s 17-ship fleet. CruiseFirst certificates are combinable with nearly all public promotions.

Until March 31, travel advisors can receive a wave season $50 gift card bonus for each CruiseFirst certificate purchased. Advisors will also receive full commission (based on NCL’s standard policy) for the booking made using the certificate.