1972 Puerto Rico DC-7 crash

Piñones State Forest, (in Spanish: Bosque Estatal de Piñones), and named after the Casuarina, locally called Piñones (after an invasive species of salt-tolerant tree from Australia used for lumber), is a timberland forest near one of the longest beaches in Puerto Rico. It is located in Torrecilla Baja barrio in the municipality of Loíza. It is a tourist attraction and is managed by the Puerto Rico Department of Natural and Environmental Resources.

Torrecilla Baja is a barrio in the municipality of Loíza, Puerto Rico. Torrecilla Baja has eight sectors and its population was 2,404 in 2010. The Piñones State Forest is located in Torrecilla Baja.

Cangrego Arriba is a barrio in the municipality of Carolina, Puerto Rico with a population of 17,041 in 2010.

Muñiz Air National Guard Base is the home base for the Puerto Rico Air National Guard. This installation is located within the grounds of Luis Muñoz Marín International Airport in Carolina, Puerto Rico 14 km (9 miles) east of San Juan, Puerto Rico.

Luis Muñoz Marín International Airport (IATA: SJU, ICAO: TJSJ, FAA LID: SJU) (Spanish: Aeropuerto Internacional Luis Muñoz Marín) is a joint civil-military international airport located in suburban Carolina, Puerto Rico, three miles (5 km) southeast of San Juan. It is named for Luis Muñoz Marín, Puerto Rico's first democratically elected governor, and was known as Isla Verde International Airport (Aeropuerto Internacional de Isla Verde) until it was renamed in February 1985. It is the busiest airport in the Caribbean region by passenger traffic. Over 4 million passengers board a plane at the airport per year according to the Federal Aviation Administration, making it the 48th busiest airport overseen by said federal agency.The airport is owned by the Puerto Rico Ports Authority and managed by Aerostar Airport Holdings, a public–private partnership which was awarded a lease by the government of Puerto Rico to operate and manage the airport for 40 years beginning in 2013. SJU is the second international airport to be privatized in the United States or its territories, and, as of 2013, is the only currently privatized airport in the nation. Taxis and rental cars can transport travelers to and from the airport. The airport serves as a gateway to the Caribbean islands. SJU covers 1,600 acres (647 ha) of land.

Sabana Abajo is a barrio in the municipality of Carolina, Puerto Rico. Its population in 2010 was 55,600.

Buena Vista is a barrio in the municipality of Carolina, Puerto Rico. Its population in 2010 was 29,303.

Torrecilla Alta is a barrio in the municipality of Loíza, Puerto Rico. Its population in 2010 was 0.

Isla Verde (Spanish for green island) is an area of Carolina located east of Santurce (southwestern front of Piñones) next to Luis Muñoz Marín International Airport above the Teodoro Moscoso Bridge. The area lies just outside the eastern border of San Juan, capital of Puerto Rico that links with Hato Rey, which includes the neighborhoods of Floral, Park, Baldrich and El Vedado revolving around "La Milla de Oro" (The Golden Mile) financial district.

Carolina (; Spanish pronunciation: [kaɾoˈlina]) is a city and municipality located on the northeast coast of Puerto Rico. It lies immediately east of the capital San Juan and Trujillo Alto; north of Gurabo and Juncos; and west of Canóvanas and Loíza. Carolina is spread over 12 barrios plus Carolina Pueblo (the downtown area and administrative center). It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area, and home to Puerto Rico's main airport, the Luis Muñoz Marín International Airport.

Air Caribbean Flight 309 was a domestic, non-scheduled airline flight by Puerto Rican airline Air Caribbean, which on September 26, 1978, crashed as it was preparing to land at Luis Muñoz Marín International Airport (then known, unofficially, as Isla Verde International Airport) in San Juan, after a flight from Ramey Air Force Base (what is now known as Rafael Hernandez Airport) in Aguadilla, killing all six occupants of the aircraft and injuring several customers of a Barrio Obrero bar over which the airplane fell.

Isla Verde Reef (Spanish: Arrecife de Isla Verde) is a reef that surrounds Isla Verde Key, located off the coast of Punta del Medio in Isla Verde, Carolina, in the Atlantic coast of Puerto Rico. The Isla Verde Reef, protected as the Isla Verde Reef Marine Reserve (Reserva Marina Arrecife de Isla Verde), forms part of a larger reef system that extends from Punta Maldonado in Piñones, Loíza to the San Juan Islet. This is one of the three designated marine reserves in Puerto Rico, the other two being the Desecheo Coastal Waters and Tres Palmas marine reserves off the western coast of Puerto Rico, and the only one that protects a coral reef ecosystem on an urban area. The reserve is home to endangered species such as manatees, sea turtles and federally protected coral species such as the elkhorn coral. The coral reef is also an ideal place for fish spawning which is important for the fishing industry of the region. The Isla Verde Reef is protected through community organizations such as Arrecifes Pro Ciudad, and public organisms such as Para la Naturaleza (Puerto Rico Conservation Trust), with support from academic institutions such as the University of Puerto Rico at Bayamón.