El Salvador
With an area of 8,100 sq miles (21,000 sq km) El Salvador is the smallest country in Central America, it is also the one with more population density in the area. In this small country you can find Mayan ruins, great beaches, colonial towns, great handcrafts, volcanos and beatiful people (almost 7,000,000 people live in this small country).
Currency conversion is no problem here, the U.S. dollar is the official currency in this Spanish speaking country.

So, what can you do here?
You can go to El Salvador beaches at Acacutla or Costa del Sol. Enjoy a great colonial city like Suchitoto. See and buy handcrafts at Ilobasco, eat Pupusas at Santa Tecla and a lot more.