Caguas is a city in Puerto Rico. Puerto Rico is a small island in the Caribbean Sea and it is part of the United States. Caguas is a place where people live, work, and play. People in Caguas speak Spanish, English and also some other languages from the Caribbean Islands. There are many different types of things to do in Caguas. You can visit historical sites, go shopping in the city, go to the beach, and play sports. The people of Caguas are also very friendly and welcoming. Caguas is known as the 'Heart of Puerto Rico' because of all the things it offers.