NCL's cruise ship Norwegian Sun has been forced to revise its Baltic itinerary after experiencing engine related issues that require the ship to operate at a reduced speed.

Captain Teo Radun informed guests of the situation through the ship's public address system, reassuring passengers that while the technical problem affects the vessel's speed, it does not compromise the safety of guests or crew. Shortly afterward, Norwegian Cruise Line distributed a letter detailing several itinerary changes, including canceled port calls, revised arrival times, and compensation for affected passengers.

According to the letter sent to guests, the reduced operating speed has resulted in the cancellation of scheduled visits to Nynäshamn (Stockholm), Sweden, and Klaipėda, Lithuania, both of which have been replaced with sea days.

The original call to Gdynia, Poland, has also been removed from the itinerary and replaced with a visit to Rønne, Denmark, on the Danish island of Bornholm. Norwegian Cruise Line described Rønne as a picturesque seaside town known for its coastal scenery and relaxed atmosphere.

In addition to the canceled ports, several other calls have been adjusted:

Norwegian Cruise Line apologized for the disruption and thanked guests for their understanding. As compensation, the cruise line is providing $100 in non-refundable onboard credit per stateroom, split equally between the first two guests, and a 25% Future Cruise Credit for each passenger. The credit can be used to book a new cruise within the next 12 months for sailings departing through December 31, 2027, and will become available starting July 3, 2026.

The cruise line also confirmed that all shore excursions booked through Norwegian Cruise Line for the canceled ports of Nynäshamn, Klaipėda, and Gdynia will be automatically canceled and fully refunded to guests' onboard accounts. Shore excursions in Copenhagen, Warnemünde, and Kiel are being adjusted to reflect the revised port times whenever possible, with refunds issued if adjustments cannot be made.

Despite the itinerary changes, Norwegian Cruise Line said it remains committed to delivering an enjoyable Baltic cruise experience and encouraged guests to make the most of the additional time at sea and the newly added visit to Rønne.