We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Arecibo Observatory

Certificate of Excellence
Sponsored by:
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Sponsored by:
Get directions
Address: HC-3 CAJA 53995, Arecibo 00612, Puerto Rico
Phone Number: +1 787-878-2612
9:00 am - 4:00 pm
Closed now
See all hours
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.

read more
Book In Advance
More Info
and up
San Juan Day Trip to Rio Camuy Caves and Arecibo Observatory
More Info
and up
Rio Camuy Cave Park and Arecibo Observatory from San Juan

TripAdvisor Reviewer Highlights

Read all 710 reviews
Visitor rating
  • 276
  • 229
    Very good
  • 73
  • 19
  • 19
For the science geek

Not meant pejoratively but the effort to get there would discourage most. It's a 30+ min drive on 1 1/2 lane road with two way traffic. The signage marking the route is pretty... read more

4 of 5 starsReviewed 4 days ago
Washington, DC
via mobile
Add Photo Write a Review

710 Reviews from our TripAdvisor Community

Traveler rating
Traveler type
Time of year
  • More
Showing 616: English reviews
Dublin, Ohio
Level Contributor
144 reviews
67 attraction reviews
common_n_attraction_reviews_1bd8 46 helpful votes
5 of 5 stars Reviewed yesterday NEW

As an Octorgenarian, I like to believe that I have seen my share (Almost) or at least half of this Island of Puerto Rico. This place is so exciting that I had to return and take my wife. We arrived there in what seemed to be a Jungle Area in the Mountains, well hidden away from the public. After parking,... More 

Thank Bill M
Level Contributor
67 reviews
24 attraction reviews
common_n_attraction_reviews_1bd8 30 helpful votes
3 of 5 stars Reviewed 2 days ago NEW

Somewhat informative tour but a crazy series of roads to get there. If you're driving beware. Tour lasted about 1 hr

Thank NJItalian
Dayton, New Jersey
Level Contributor
142 reviews
22 attraction reviews
common_n_attraction_reviews_1bd8 26 helpful votes
5 of 5 stars Reviewed 3 days ago NEW

This was a great landmark to visit! This observatory was nestled into the hills of Arecibo, and is the largest radio telescope in the world. The tour was conducted by well-informed leaders, and then there is plenty of time to study the exhibits. All of this was topped off by the fact that it was used as a backdrop in... More 

Thank JerryCucamonga
Washington, DC
Level Contributor
13 reviews
common_n_attraction_reviews_1bd8 7 helpful votes
4 of 5 stars Reviewed 4 days ago NEW via mobile

Not meant pejoratively but the effort to get there would discourage most. It's a 30+ min drive on 1 1/2 lane road with two way traffic. The signage marking the route is pretty good. Once you get there though, if you appreciate the scale of the work to build it and the scientific displays, you'll not only enjoy it but... More 

Thank ruckhus
Los Angeles, California
Level Contributor
90 reviews
34 attraction reviews
common_n_attraction_reviews_1bd8 28 helpful votes
5 of 5 stars Reviewed 1 week ago

This observatory provides a glimpse into exciting world of astronomy and our exploration into the far reaches of the galaxy. It doesn't hurt that several famous movies have been shot here, notably Contact (with Jodie Foster, exploring extra-terrestrial life) and Golden Eye (James Bond, need I say more!). Definitely worth a visit, if you have any interest in science, engineering... More 

Thank Ananta M
Silver Spring, Maryland
Level Contributor
58 reviews
45 attraction reviews
common_n_attraction_reviews_1bd8 11 helpful votes
4 of 5 stars Reviewed 1 week ago

The observatory costs $15/person to enter. There is a small inside exhibit with information that is basic, but interesting for a layman. A short video summarizes the history of the telescope and a tour guide further explains the history, design, maintenance, and answers most any questions you have. I would recommend combining a day trip to Arecibo to include some... More 

1 Thank Matt G
Fairport, New York
Level Contributor
12 reviews
6 attraction reviews
common_n_attraction_reviews_1bd8 1 helpful vote
5 of 5 stars Reviewed 1 week ago

Go here then watch the movie Contact! Jodie Foster gets to be the first to travel through space & time. The work done here will benefit us for many years to come.

Thank Jfrapp
Washington DC, District of Columbia
Level Contributor
87 reviews
19 attraction reviews
common_n_attraction_reviews_1bd8 35 helpful votes
5 of 5 stars Reviewed 1 week ago via mobile

Read the Wiki entry before you go, then turn off your cell phones and wear sneakers - it is a bit of a hike to the observatory from the parking lot. Note - if you can't do it the staff will call you a ride. The observatory visitor's center has a lot of cool interactive stuff for kids and I... More 

Thank TD8
Washington DC, District of Columbia
Level Contributor
30 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 8 helpful votes
5 of 5 stars Reviewed 1 week ago via mobile

This was a real education and truly one of the world wonders. The story of how it was built is incredible and the fact that it exists was news to me. I enjoyed the VIP tour and it was fun to see that a James Bond movie set was actually a real place! Take the family and learn. It's a... More 

Thank Deborah E
Queens, New York
Level Contributor
6 reviews
3 attraction reviews
5 of 5 stars Reviewed 2 weeks ago

Amazing place to visit. The roads are very narrow and the drivers there fly by you. The ride has many curves and turns but worth the trip. The staff is very knowledgeable and speak English. We checked the weather before we went because when it rains the roads get very slippery.

Thank sweetsel70

Travelers who viewed Arecibo Observatory also viewed

Arecibo, Puerto Rico

Been to Arecibo Observatory? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing

Questions & Answers

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

See all questions (17)

Questions? Get answers from Arecibo Observatory staff and past visitors.
Posting guidelines
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?