Norwegian Cruise Line Holdings, which earlier reported strong first quarter interim results, says it has reduced its full year adjusted net yield forecast, but retains earnings per share (EPS) forecast unchanged.

Norwegian forecasts its adjusted net yields to rise by 1.75% this year, which is exactly half the forecast it gave in the fourth quarter and full year 2015 result statement. However, the company has significantly raised the net cruise cost guidance and now expects these to rise, on reported basis, by 6.25% compared to 2.25% in the previous guidance.

The company has retained its full year earnings per share forecast unchanged, at $3.65 to $3.80.

"Continued strong demand in the Caribbean, Alaska, Bermuda, and Hawaii is offsetting softness in Europe which comes mainly as a result of lower demand from North American consumers," said Wendy Beck, executive vice president and chief financial officer of Norwegian Cruise Line Holdings, in a statement. 

"While this softness is tempering yield growth mainly in the second quarter, strong bookings and pricing in other core markets, as well as the addition of Seven Seas Explorer to our fleet, are contributing to strong yield performance in the back half of the year, keeping us on track to deliver expected earnings growth of approximately 30%," continued Beck. 

Sirena joined the Oceania Cruises' fleet in March and her first sailing commenced in late April following an extensive, multi-million dollar upgrade and refurbishment.  Seven Seas Explorer, the first newbuild for Regent Seven Seas Cruises in over thirteen years, will join the fleet in the third quarter