The Guánica State Forest, located in the municipality of Guánica, is a subtropical dry forest located in the southwest of Puerto Rico. The area was designated as a forest reserve in 1919 and Biosphere Reserve of the United Nations in 1981.

Cordillera Central, is the main mountain range in Puerto Rico. The range crosses the island from west to east and divides the island into northern and southern coastal plains.

Guánica is a town and municipality in southern Puerto Rico, bordering the Caribbean Sea, south of Sabana Grande, east of Lajas, and west of Yauco. It is part of the Yauco metropolitan statistical area.

Humacao is a municipality in Puerto Rico located on the eastern coast of the island, north of Yabucoa; south of Naguabo; east of Las Piedras; and west of Vieques Passage. Humacao is spread over 12 wards and Humacao Pueblo.

Palmas del Mar is a golf course resort and residential community consisting of beach resorts. It is located in the municipality of Humacao, Puerto Rico, on the southeast corner of the island.

Toro Negro is a barrio in the municipality of Cialis, Puerto Rico. Its population in 2010 was 970.