Hato Viejo, Arecibo, Puerto Rico

Cueva Ventana (English: Window Cave) is a large cave situated atop a limestone cliff in Arecibo, Puerto Rico, overlooking the Río Grande de Arecibo valley. It is visible from the PR-123 but is accessible from a trail that begins adjacent to a Puma gas station located along PR-10 on kilometer 75. The cave and surrounding land are privately owned.

Carreras is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 1,226.

Esperanza is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 1,882.

Dominguito is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 4,895.

The Mata de Plátano Field Station (Spanish: Estación de campo Mata de Plátano) is a research field station and nature reserve located in the barrios Dominguito and Tanamá of Arecibo, about an hour away from San Juan, in the heart of the Northern Karst region of Puerto Rico. The field station includes laboratory space and it is managed by the Interamerican University of Puerto Rico, particularly the Bayamón campus, but it is open to researchers of biology, ecology and other environmental sciences from a number in and out of state of academic institutions.

Tanamá is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 3,190.

The Tanamá River (Spanish: Río Tanamá) is a river of Arecibo, Utuado and Adjuntas, Puerto Rico.

Bajadero is a community in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 3,710. Three barrios border each other and each contains a section of the community. The Bajadero community in the barrio of Arenalejos had a population of 2,380 in 2010. The Bajadero community in the barrio of Carreras had a population of 64 in 2010 and the Bajadero community in the barrio of Domingo Ruíz had a population of 1,266 in 2010. There is a U.S. Post office in the community of Bajadero and its zip code is 00616.

Arenalejos is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 3,064. Arenalejos is near the center of Arecibo, west of Miraflores.

Domingo Ruíz is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 3,153.

Miraflores is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 5,863.

Hato Arriba is a barrio in the municipality of Arecibo, Puerto Rico. Its population in 2010 was 8,495.