Nestled in the Gulf of Guinea in West Africa, this island nation is about as far removed from Greenwich as you can imagine . . . but it still shares a time zone! Much like Cabo Verde, there's evidence of previous Portuguese rule which gives the islands a culture (and cuisine) based on fusion. São Tomé and Príncipe is a haven of ecotourism, and British nationals don't need a visa for visits of 15 days or less.