For a limited time, free excursions in Silversea's CaribbeanFor a limited time, free excursions in Silversea's Caribbean

Sample excursions include exploring Antigua's historic English Harbor and Nelson's Dockyard, a UNESCO World Heritage Site, spotting celebrity hideaways in the Grenadines while sailing on a catamaran, admiring the white-sand beaches of Grand Turk on horseback and swimming with turtles in Barbados.

The promotion is available in US and Canadian markets for new bookings made through Nov. 30, 2017, and can be combined with a $199 round-trip economy air offer available with select Caribbean sailings from dozens of gateway cities in the US and Canada.

Voyages offering free shore excursions and $199 round-trip economy air include Silver Wind's Feb. 4 seven-day cruise from Fort Lauderdale to San Juan with calls at Grand Turk, Samaná, Spanish Town, St. Thomas and St. Barts.

Also eligible are Silver Wind's Feb. 18 weeklong round-trip from San Juan with calls at Spanish Town, St. Maarten, St. Kitts, Martinique, Antigua and Jost Van Dyke, and the ship's Feb. 25 10-day round-trip from San Juan to Spanish Town, St. Barts, St. Lucia, Grenada, Barbados, St. Vincent and the Grenadines, Guadeloupe, Antigua and Tortola.

Silver Wind's March 11 seven-day round-trip from San Juan visits Spanish Town, St. Kitts, Antigua, St. Maarten, St. Barts and Tortola.

Silver Muse departs March 13 on a nine-day Fort Lauderdale round-trip with calls at Cozumel, Belize City, Santo Tomás de Castilla, Roatán Island and Key West. The ship's March 22 cruise, 13 days from Fort Lauderdale to San Juan, stops at Grand Turk, Tortola, St. Kitts, Martinique, Barbados, Grenada, St. Vincent and the Grenadines, Antigua, St. Barts and St. Thomas.

Silver Wind's March 23 seven-day round-trip from San Juan calls at St. Barts, St. Kitts, Antigua, St. Lucia, Guadeloupe, and the ship's March 30 voyage, also seven days, from San Juan to Fort Lauderdale, charts St. Barts, Tortola, Samaná, Grand Turk and Key West.