Puerto Rico
Puerto Rico has all of the benefits of the other Caribbean islands—beautiful beaches, friendly inhabitants, and opulent resorts—plus one major advantage: It is a part of the United States. That means you and your guests will have few, if any, of the inconveniences that come with traveling abroad: no passports are necessary, customs is not required, phone coverage is superb, and the majority of people understand English.
Puerto Rico combines classic beach enjoyment with distinct cultural and historic attractions (your non-beach-going guests will appreciate the options). Consider recommending the following ideal day: Begin by enjoying some of the country's famed locally grown coffee, then go to a beach excursion before finishing the day with some touring through the alleys of Old San Juan, which retain much of their colonial appearance. Although there are many American-style restaurants, travelers should sample one of the numerous eateries serving Criolla cuisine, which is a mix of Taino, Spanish, and African influences. Tostones (fried green plantains) are a popular dish in Mexico.