In September 2017, Hurricane Irma caused extensive damage across the island. Many places closed for rebuilding. Frommer's recommends that vacationers check in advance with all businesses before traveling.

The walled city known as El Viejo San Juan contains the biggest and best collection of historic buildings, stretching back 5 centuries, in all the Caribbean. The Spanish began to settle in the area now known as Old San Juan around 1521. Today the cobblestone streets are narrow and teeming with traffic. This historic 7-square-block area holds many of the city’s chief sightseeing attractions.