The U.S. Virgin Islands is expanding its popular travel credit promotion.

The USVI’s Department of Tourism has launched a new program called “Centennial PLUS” to coincide with the destination’s 100th anniversary as a U.S. territory.

Now, the package offers $400 in “VI Spending Credits” along with a fourth night free for travelers who book trips with participating tour operators.

The credits can be easily redeemed across the territory at restaurants, retail shops, attractions and activities.

The new package builds on the success of the USVI’s popular $300 spending credit incentive.

A four-night stay must be booked through tour operator partners through June 1 for travel between June 1 and Oct. 31, 2017.

“Given the success of our Centennial promotion, we wanted to sweeten our offer so travelers can get an authentic taste of our islands during this historic year in our Territory,” said Commissioner of Tourism Beverly Nicholson-Doty.

Participating tour operators include American Airlines Vacations, Apple Vacations, CheapCaribbean.com, Costco Travel, Delta Vacations (MLT), Expedia Inc., Flight Center Travel Group (Libgo), JetBlue Vacations, Pleasant Holidays, Travel Impressions and Tourico Holidays.

St. Croix hotel partners include Arawak Bay: The Inn at Salt River, Caravelle Hotel & Casino, Club Comanche Hotel St. Croix, Divi Carina Bay Beach Resort & Casino, Holger Danske Hotel, Hotel on the Cay, Mount Victory Camp, Renaissance St. Croix Carambola Beach Resort & Spa, The Buccaneer Hotel, The Palms at Pelican Cove, Sand Castle on the Beach and Sugar Beach Condo Resort.

On St. John, participating hotels include Coconut Coast Villas, Concordia Eco-Resort, Gallows Point Resort, The Westin St. John Resort Villas, and Vacation VI/SirenUSA.

Participating hotels on St. Thomas include Bolongo Bay Beach Resort, Emerald Beach Resort, Frenchman’s Reef & Morning Star Marriott Beach Resort, Galleon House, Sugar Bay Resort & Spa, Windward Passage Hotel and Virgin Islands Campgrounds.