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Arecibo Observatory

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Address: HC-3 CAJA 53995, Arecibo 00612, Puerto Rico
Phone Number: +1 787-878-2612
9:00 am - 4:00 pm
Open now
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Sun - Sat 9:00 am - 4:00 pm
Recommended length of visit: 1-2 hours
Fee: Yes

Explore the wonders of the universe at the world's largest radio telescope...

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.

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TripAdvisor Reviewer Highlights

Read all 687 reviews
Visitor rating
  • 263
  • 224
    Very good
  • 71
  • 18
  • 18
Nice Experience

I was a little disappointed that you can't just go and see the telescope on its own. You have to buy tickets and go through the visitor center, which I thought was a bit boring... read more

4 of 5 starsReviewed 4 days ago
Manhattan, Kansas
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687 Reviews from our TripAdvisor Community

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Showing 594: English reviews
Manhattan, Kansas
Level Contributor
63 reviews
25 attraction reviews
common_n_attraction_reviews_1bd8 29 helpful votes
4 of 5 stars Reviewed 4 days ago NEW

I was a little disappointed that you can't just go and see the telescope on its own. You have to buy tickets and go through the visitor center, which I thought was a bit boring. It was nice to watch the short movie to get an idea what the observatory is all about, though. Once you get to go outside,... More 

Thank stxoneway
Pittsburgh, Pennsylvania
Level Contributor
9 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 1 helpful vote
4 of 5 stars Reviewed 1 week ago

I traveled to Arecibo in 2006 with for a college class. So I had a lot of information on the place before arriving since my professor use to live in Puerto Rico. It is a long a trip the Observatory and I started to get car sick from the winding roads. There is also a very long and steep hike... More 

Thank NCA84
Washington DC, District of Columbia
Level Contributor
14 reviews
6 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
3 of 5 stars Reviewed 1 week ago

As an engineer I had been looking forward to visiting this facility. I was disappointed by how superficial the tour was, especially given the remote location of the site, and the steep ascent required to get to the visitor center (on foot). The tour starts with a 15 minute movie on the history and purpose of the site. You then... More 

Thank Arnel E
Bottineau, North Dakota
Level Contributor
7 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 2 helpful votes
5 of 5 stars Reviewed 1 week ago

Aside from the narrow mountain roads that you have to take to get there (GPS was helpful to have as some of the various roads look just like residential streets), everything about our tour of the observatory was so wonderful. They are doing REAL science there. Helping to not only get a better understanding of our universe, but also keeping... More 

2 Thank SSLND
Level Contributor
47 reviews
26 attraction reviews
common_n_attraction_reviews_1bd8 14 helpful votes
5 of 5 stars Reviewed 1 week ago via mobile

This is a great spot if you're interested in astronomy or learning in general. Takes about 2 hours total to visit and includes a video introduction, tour of the telescope and access to two floors of exhibits. There's a cute gift shop and food available as well, like empanadas. The site is always lacking in funding but encourages a lot... More 

Thank Jennifer R
San Juan, Puerto Rico
Level Contributor
15 reviews
common_n_attraction_reviews_1bd8 5 helpful votes
5 of 5 stars Reviewed 2 weeks ago

I loved this place! It is so interesting! There's a movie, there's an interactive museum, there's the observatory...They even tell the story of how they filmed a James Bond scene there. It's simply a great place for all the family.

1 Thank cbgonzalez
Level Contributor
18 reviews
9 attraction reviews
common_n_attraction_reviews_1bd8 9 helpful votes
3 of 5 stars Reviewed 3 weeks ago via mobile

Out of all of the places I visited in the Arecibo area, I was the least impressed by the observatory. Yes, it is a massive telescope!!! It is the largest one on the planet. There is a lot of scientific information that we have been able to acquire through the use of the telescope. However, as an observer/tourists there was... More 

Thank Alanija
Centennial, Colorado
Level Contributor
4 reviews
5 of 5 stars Reviewed 3 weeks ago

Experience National Observatory history up to present day. Great tour for scientific/engineering marvel lovers-A must see in Puerto Rico.

Thank robertcW3959NX
Level Contributor
13 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 6 helpful votes
4 of 5 stars Reviewed 3 weeks ago

This place is great if you are the kind of person that gets bored easily in a museum. The visitor center has hands-on exhibits for kids (and adults). The guide and short movie run through particulars pretty quickly and you get to see the outside structure. We ate lunch at the outside vending area which was reasonable. Overall, it was... More 

2 Thank CoolKandi2
Baltimore, Maryland
Level Contributor
193 reviews
117 attraction reviews
common_n_attraction_reviews_1bd8 92 helpful votes
5 of 5 stars Reviewed 4 weeks ago via mobile

Once I learned Golden Eye was filmed here I was sold on visiting. I'm obviously not alone in this because the tour guide explained many things about the filming of the movie, so if you're in the same boat as me you'll be able to geek out on that. Beyond that it's a cool place to visit. Driving through the... More 

1 Thank Jason G

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Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Arecibo Observatory and other visitors
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over a year ago
Rhode Island
Savannah, Georgia
3 months ago

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Typical questions asked:
  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?