Puerto Rico is a U.S. territory, therefore Americans DO NOT need a passport or to exchange currency. It is generally inexpensive for a round trip flight into San Juan, which is the capital. Puerto Rico is in the Northeastern part of the Caribbean neighboring the Dominican Republic and Virgin Islands. The official languages are both Spanish and English. When visiting Puerto Rico we would suggest renting a small car, if you want to explore more than just the capital. The roads in Puerto Rico are filled with potholes and crazy drivers but at least if you rent a car then you can make your own schedule. Also, be cautious when driving in the rain. At times it can rain so intensely that the drainage system gets overwhelmed. We have witnessed cars float away on the freeway. Once you get to a toll road, the roads are much better and similar to American highways.In the later hours of the night or early morning, be extremely careful about lingering too long at red lights. The locals have told us to basically do a quick stop, then if clear oftraffic, go! The reason we were told to do this is that there allegedly is a high rate of robberies on individuals stopped at red lights during the night. Another thing you will notice if you are trying to navigate Puerto Rico is that GoogleMaps is only somewhat accurate in Puerto Rico, at least from our experience. Its not uncommon to plug in an address or name of a business into google maps, and have the GPS bring you somewhere completely wrong.