Holland America Line is preparing for a gradual restart and is said to be moving six cruise ships toward the U.S. citing positive signs and a new conversation around the return to service.

The news came in a letter sent to crew from President Gus Antorcha, reported by Crew Center, and also obtained by Cruise Industry News.

“Following in-depth discussions with the CDC, other government agencies, and medical and science authorities, we have decided to start moving six Holland America Line ships toward U.S. waters over the next several weeks to begin completing the requirements for conditional sailing.” Antorcha said in the letter sent to crew.

The ships heading to U.S. waters are the Koningsdam, Nieuw Statendam, Nieuw Amsterdam, Westerdam, Zuiderdam, and Noordam. Holland America did not specify port information but the line has traditionally had a strong presence in the winter from Port Everglades and Tampa, which would pull from a large drive-to market.

“While there is still much to be done, this is an important first step toward our goal of resuming cruise operation,” the letter said.

“Holland America Line will continue to work with the CDC on our eventual return to guest cruise operations. We are fully aligned with the CDC on our top priorities for compliance, protecting the environment, and the health, safety, and well-being of our guests, the people in communities we touch, our crew, and shoreside employees.”