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Arecibo Observatory

53995 Caja, Arecibo 00612, Puerto Rico
+1 787-878-2612
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San Juan Day Trip to Rio Camuy Caves and Arecibo Observatory
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Rio Camuy Cave Park and Arecibo Observatory from San Juan
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Explore the wonders of the universe at the world's largest radio telescope located in Arecibo, Puerto Rico. Here, scientists from throughout the world use the 305 meter dish to gather radio signals from regions of star formation, planets, distant galaxies and the atmosphere. Visit the Angel Ramos Foundation Science and Visitor Center which includes interactive exhibits. Enjoy the amazing view from the observation deck and don't forget the auditorium and souvenir shop.
  • Excellent50%
  • Very good35%
  • Average11%
  • Poor2%
  • Terrible2%
Travellers talk about
“radio telescope” (134 reviews)
“visitor center” (56 reviews)
Open Now
All hours
Hours Today: 9:00 AM - 4:00 PM
Suggested Duration: 1-2 hours
53995 Caja, Arecibo 00612, Puerto Rico
+1 787-878-2612
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Reviews (895)
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1 - 10 of 773 reviews

Reviewed 3 October 2017

My adult children and I were stunned by this fantastic place. It is jaw-dropping! I would highly recommend this observatory if you are at all interested in science.

Thank Marie G
Reviewed 15 September 2017

We spent two days in San Juan before leaving on a cruise. I was on the fence about this since I am not an astronomy buff, but my partner is so we rented a car and off we went. It's about an hour and a...More

Thank philcentraltexas
Reviewed 9 September 2017

We visited the observatory, it was on our bucket list. It was a quick trip, we did not get a chance to see the 20 minute movie; we wanted to see the satelite radar. It's IMPRESSIVE, we see in the movies but not the same....More

Thank Viktor262
Reviewed 23 August 2017

I have to admit i wasn't super excited to see this; I knew little about it other than its use in the 007 movie Golden Eye. Well, the 30 minute movie at the beginning of the tour was informative and interesting. I had no idea...More

3  Thank Louise M
Reviewed 17 August 2017

Worlds largest Radio Telescope and a Science Center inside. A Giant Dish in the limestone hills of Puerto Rico! Dont forget to make time for the Camuy Caves up the street!

1  Thank chris m
Reviewed 17 August 2017 via mobile

Very intersting i had no ideas it is the largest observatory of the world. The only thinh is the road and the walk up the hill.

Thank Adriana B
Reviewed 14 August 2017 via mobile

It is a small place with very interesting displays. Make sure to watch the informational movie. Everyone we encounters was knowledgable and friendly.

1  Thank mama3awesomekids
Reviewed 12 August 2017 via mobile

The place is interesting. I have been in the others Smithsonian were they have information. However, in this place you will get it from the people who are in there. Today, they had to shutdown a couple equipment when they had to determine and decode...More

Thank felipepr1
Reviewed 9 August 2017

Very interesting, the biggest radar in the world. A guided tour will be nicer than the movie only and some special educational service to kids too.

Thank ellacurra
Reviewed 8 August 2017

This is a small but interesting stop while in PR, To see this in person makes you realize how big science can be sometimes! Definitely worth a look!

1  Thank Amy H
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Questions & Answers
Marilyn C
23 June 2017|
AnswerShow all 10 answers
Response from Jerry131 | Reviewed this property |
yes, speak with entrance guard. they allowed us to drive up to the top, where my wife's mother could access by walker. A wheelchair will also work.
19 June 2017|
AnswerShow all 8 answers
Response from kenny h | Reviewed this property |
I don't know of any way to get there without a vehicle. It is 50 to 60 miles from San Juan and I am unaware of any public transportation that goes there. There are tour groups that go out there but it would cost about the... More
Connie M
6 June 2017|
AnswerShow all 9 answers
Response from Luis A C | Reviewed this property |
Hy According To the WAZE GPS which i highly recommend in the island is aprox 61-69 miles from San Juan, it will take you right to it, it is 100% acurate in the island, hope it can help. Luis Castr