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Cruise lines have already scheduled their returns to the Caribbean, including to some of the islands that were hardest hit by Hurricane Maria and Hurricane Irma.

Carnival, Royal Caribbean International, and Holland America have all scheduled sailings with stops in the Caribbean, the Los Angeles Times reported.

Sailings might not be as regular as previously scheduled, so cruisers should check directly with their travel agency or cruise line.

Carnival will return to Grand Turk and Puerto Rico in November, adding St. Thomas and St. Martin in January. Royal Caribbean and Holland America are also planning to return to St. Thomas in January, according to the same report.

The majority of ports are open, and industry professionals have urged travelers not to cancel their trips, noting how important tourist dollars are to the region.

“We are working diligently to return the ships to the itineraries because we know it’s the lifeblood of those destinations,” Michele Paige, president of the Florida-Caribbean Cruise Association, told the Miami Herald.

Ports in Key West, Bahamas, the Dominican Republic, and St. Lucia are open for business — to name a few — and many more are opening soon, according to an in-depth list from Cruise Critic.

Cruise ships have been instrumental in transporting supplies and helping rebuild Caribbean islands by contributing to relief efforts and assisting with evacuations.