The Quark Ultramarine has set sail on its inaugural voyage out of Ushuaia on Dec. 23, 2021.

“We’re thrilled to be back at sea! After five years of intense ship-building and innovation – plus an interruption of expedition travel due to the pandemic – we’re so excited for our guests on Ultramarine’s inaugural voyage, which set sail on Dec. 23,” the cruise line wrote on social media.

“Not only are these adventurers the first to travel on this game-changing ship, but they also get to celebrate the life of Sir Ernest Shackleton on this multi-destination itinerary, ‘Chasing Shackleton: Journey from South Georgia to Antarctica.’,” it added.

The itinerary is an 18-night roundtrip voyage with visits to the Antarctic Peninsula, Elephant Island and South Georgia Island. The Ultramarine is set to return to Ushuaia on Jan. 10.

The cruise line said that it’s “doubly excited” to be on the Ultramarine’s maiden voyage and finally utilize its two twin-engine helicopters and 20 quick-deploy zodiacs.