Jardines del Rey
The Jardines del Rey (King's Gardens) are a chain of islands off the north coast of Cuba. They include Cayo Coco, Cayo Guillermo, Cayo Romano and Cayo Paredon Grande which are linked to the mainland by a causeway, with a road running along it. The first two of these have been developed as beach resorts.
Until the late 1980s, the Jardines del Rey could really only be reached by boat.
Ernest Hemingway spent time during the Second World War hunting German U-boats in the area (which experience he used in his novel Islands in the Steam).
In the 1980s, the Cuban government decided to construct a causeway across the bay between Cayoc Coco and the mainland. This now carries a road, and allowed the development of Cayo Coco and Cayo Guillermo as tourist destinations.
The first hotel (the Colonial) was opened in 1993.
There is an international airport on Cayo Coco, or one can drive from the mainland.
[Note Cuba's are only allowed in with specific authorisation - for example workers in the hotel, on business, married to a foreigner or with a letter from the local police.]