Passengers who book before November 30 can choose a complimentary experience in every port of call during their journeys onboard Silver Wind and Silver Muse.
The offer can also be combined with a £299 round-trip economy air fare available on certain Caribbean sailings from a number of UK cities.
Excursions include the chance to learn about the spice production industry in Grenada; snorkel with turtles in Barbados and visit botanical gardens in Martinique.
Erin Johnson, head of marketing, UK and Ireland, said: "We invite winter travellers to take advantage of this special offer to enjoy a warm-weather luxury cruise to the beautiful islands of the Caribbean, which are ready to welcome our guests with the region’s signature warmth and hospitality.
"With these carefully selected shore excursions, our guests can immerse themselves deeper in each island’s remarkable culture and heritage."
Passengers can take advantage of the complimentary excursions on a round-trip from Fort Lauderdale onboard Silver Muse, as well as a Fort Lauderdale to San Juan voyage, which both depart next March.
On Silver Wind, customers can gain the deal by booking one of two Fort Lauderdale to San Juan voyages departing in February and March, as well as four round-trip sailings from San Juan during the same period.
