Travel Guide

Arecibo Observatory

Arecibo Observatory - One of  Puerto Rico's most interesting man made attractions

A great day trip in Porta Atlantico is the Arecibo Observatory, an education attraction great for the whole family, and certainly one of Puerto Rico’s most intriguing man made structures. The Arecibo Observatory is nestled on the green lush karst region of Puerto Rico and the drive here is very pleasant.  You may have seen the Arecibo Observatory on the movies Contact and Golden Eye. Don’t even think that you have seen it all in our photo gallery, you have to be here to appreciate it, bring the kids, it’s a great educational attraction.

The Arecibo Observatory, the world’s largest radiotelescope,  it was dedicated in 1963. It’s design and implementation led to advances in the electrical engineering areas of antenna design, signal processing, and electronic instrumentation, and in the mechanical engineering areas of antenna suspension and drive systems. The drive system positions all active parts of the antenna with millimeter precision, regardless of temperature changes, enabling the telescope to maintain an accurate focus. Its subsequent operation led to advances in the scientific fields of radio astronomy, planetary studies, and space and atmospheric sciences.

Visitor Center

Educational Center - Arecibo Observatory, Puerto Rico

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Here, through a variety of interactive exhibits, audiovisual displays, and informative panels, visitors are introduced to basic astronomy, atmospheric science, and to the operation of the radio telescope and its related research areas.


  • (August 1 to December 14 ) and (January 16 to May 31)
  • Wednesday – Sunday – Holidays … 9:00 am – 4:00 pm
  • Mondays and Tuesdays Closed

Summer Season
(June 1 – July 31)
Monday – Sunday
9:00 am – 4:00 pm

Winter Season
(December. 15 – January. 15)
Monday – Sunday
9:00 am – 4:00 pm

Closed on the following 8 Holidays: Good Friday, Easter, Mother’s Day, Father’s Day, Thanksgiving, Christmas, New Year and Three Kings Day.

Admission: Adults $10.00, Children and Senior $6.00

Schools and Special Groups Call for Appointment

Contact Information:

The drive here is scenic and very green, after visiting the Observatory, head over to the Parque Caverna del Rio Camuy.

Map – Arecibo Observatory

Arecibo Observatory is about 1.5 hours from San Juan, with traffic plan for a 2 hour drive.

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Arecibo Observatory - Arecibo, Puerto Rico

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Arecibo Observatory - Arecibo, Puerto Rico 18.346135, -66.752672 Puerto Rico Route 625(Directions)

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