[2] On 14 May 2015, Mein Schiff 4 entered her first port, Kiel, from where she was scheduled to operate a series of short inaugural cruises.

Around 1,000 guests were present inside Mein Schiff 4's theatre; an estimated 25,000 spectators watched the event from outside.

Van Almsick then christened Mein Schiff 4, by smashing a bottle of Pommery champagne against the ship's side.

The ceremony later concluded with a late-night fireworks display, accompanied by an electro and house set from DJ Tanja La Croix.

She was home ported in Kiel for the 2015 summer season, and operate seven-day voyages to the Canary Islands, Morocco and Madeira during the winter.