Some travelers might head out on an African safari to encounter exotic species or sail up a fjord in Norway for the dramatic scenery. But just two-and-a-half hours by plane from Miami and not quite four from New York City, Puerto Rico contains a whole hidden world of natural wonders that satisfy both instincts. Here are six unforgettable experiences that you don't have to go far for or spend a lot on.

Some travelers might head out on an African safari to encounter exotic species or sail up a fjord in Norway for the dramatic scenery. But just two-and-a-half hours by plane from Miami and not quite four from New York City, Puerto Rico contains a whole hidden world of natural wonders that satisfy both instincts. Here are six unforgettable experiences that you don't have to go far for or spend a lot on.