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
Improve this listing
Map
Satellite
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Your filters are still active.
There are no pins in your viewport. Try moving the map or changing your filters.
Sponsored by:
Get directions
Address: HC-3 CAJA 53995, Arecibo 00612, Puerto Rico
Phone Number: +1 787-878-2612
Website
Today
9:00 am - 4:00 pm
Closed now
See all hours
Hours:
Sun - Sat 9:00 am - 4:00 pm
Recommended length of visit: 1-2 hours
Fee: Yes
Activities: Leisure education
Description: 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

TripAdvisor Reviewer Highlights

Read all 503 reviews
Visitor rating
  • 211
    Excellent
  • 208
    Very good
  • 63
    Average
  • 15
    Poor
  • 6
    Terrible
Interesting and educational

Stopped her on our way to our house in Rincon. Very cool to see the telescope and learn the history of it as well. Our guide was friendly and informative without being... read more

4 of 5 starsReviewed April 23, 2015
JenniferH25
,
North Olmsted
Add Photo Write a Review

503 Reviews from our TripAdvisor Community

Date | Rating
  • Dutch first
  • English first
  • French first
  • German first
  • Italian first
  • Portuguese first
  • Russian first
  • Spanish first
  • Any
English first
North Olmsted
Contributor
12 reviews 12 reviews
3 attraction reviews
11 helpful votes 11 helpful votes
4 of 5 stars Reviewed April 23, 2015 NEW

Stopped her on our way to our house in Rincon. Very cool to see the telescope and learn the history of it as well. Our guide was friendly and informative without being overwhelming. (Sorry I can't remember his name.) Worth the stop.

Was this review helpful? Yes
Mount Holly, New Jersey
Top Contributor
76 reviews 76 reviews
33 attraction reviews
37 helpful votes 37 helpful votes
4 of 5 stars Reviewed April 22, 2015 NEW

The Arecibo Observatory is a radio telescope nestled in some mountains outside of Arecibo. It is about an hour and 20 minute drive from San Juan. The telescope includes a very large dish that fits neatly into a valley between some peaks. There are some towers suspending receiving equipment at the focal point of the dish, The visitors center includes... More 

Was this review helpful? Yes
Wethersfield, Connecticut, United States
Senior Contributor
44 reviews 44 reviews
24 attraction reviews
15 helpful votes 15 helpful votes
4 of 5 stars Reviewed April 22, 2015 NEW

We had no idea that this would be so accessible to visit. The displays in the building added to the experience of the visit. The video was well done and explained the concept and design of the observatory. After the video we were led on a guided tour outside to see the actual workings of the observatory. Splendid, a must... More 

Was this review helpful? Yes
Ahwatukee, AZ
Senior Contributor
31 reviews 31 reviews
8 attraction reviews
43 helpful votes 43 helpful votes
4 of 5 stars Reviewed April 20, 2015

The view from the observation deck is really breathtaking... it's probably even better on a clear day with less moisture in the air. It's not the kind of thing you are going to see anywhere else, so if you are on the island of Puerto Rico, you might as well go see it... even if you aren't interested in the... More 

Was this review helpful? Yes 1
Austin, Texas
Top Contributor
103 reviews 103 reviews
28 attraction reviews
78 helpful votes 78 helpful votes
5 of 5 stars Reviewed April 18, 2015

I have always wanted to visit since first learning about it 30 years ago. It's a totally awesome and inspiring sight to behold. Added bonus were some guest lectures helping to celebrate the anniversary of the first man in space (April 12). Extremely interesting movie and displays. Remarkably pleasant and helpful staff. Very tasty and cheap meals/snacks available on site.... More 

Was this review helpful? Yes
Orlando, Florida
Top Contributor
141 reviews 141 reviews
42 attraction reviews
50 helpful votes 50 helpful votes
5 of 5 stars Reviewed April 18, 2015

It took about 11/2 hours from San Juan to get here. The last 30 min is on narrow winding roads. Once you get there you park (free) and then you hoof it up stairs for about 15 min. There is a shuttle available. Once there the admission is $10 dollars. There is also a movie to watch...it is in english... More 

Was this review helpful? Yes 1
NY
Senior Reviewer
9 reviews 9 reviews
3 attraction reviews
3 helpful votes 3 helpful votes
4 of 5 stars Reviewed April 15, 2015

Most of the time it takes to get to the observatory is spent on a narrow, winding road that keeps your speed low. We went during Christmas holidays and there was enough parking available, free. You can either walk up the hill or wait for a shuttle. Price of admission is reasonable. They have a lot of interactive stations that... More 

Was this review helpful? Yes
Strongsville, Ohio
Top Contributor
128 reviews 128 reviews
31 attraction reviews
132 helpful votes 132 helpful votes
4 of 5 stars Reviewed April 15, 2015

The couple with whom I recently visited Puerto RIco suggested a visit to this interesting scientific site. Developed in the 1960s by engineers and students from Columbia University, this is located in one of a natural series of bowl-shaped depressions that cover the landscape of this northeastern portion of the island. The road up to the observatory is a curving,... More 

Was this review helpful? Yes
Los Angeles, California
Reviewer
3 reviews 3 reviews
1 helpful vote 1 helpful vote
5 of 5 stars Reviewed April 14, 2015

Worth the 1.5 hour drive. The last several miles are one lane road with speed limit 20 mph. But you have to look at it with your own eyes. Recommend it, especially for family with kids!

Was this review helpful? Yes
Alexandria VA
Senior Contributor
29 reviews 29 reviews
6 attraction reviews
11 helpful votes 11 helpful votes
5 of 5 stars Reviewed April 13, 2015

We drove here from Luquillo and it was well worth the drive. Describing the largest radio telescope on earth is beyond my capabilities. But the interactive displays are not to be missed. Certainly the information tour and movie are very informative as well. All the staff members rotate through the various jobs and seem to be quite knowledgeable. This should... More 

Was this review helpful? Yes

Travelers who viewed Arecibo Observatory also viewed

 
Arecibo, Puerto Rico
El Yunque National Forest, Puerto Rico
 

Been to Arecibo Observatory? Share your experiences!

Write a Review Add Photos & Videos

Owners: What's your side of the story?

Register now for free — and start getting automatic notification of new reviews, responding to traveler feedback, adding new photos to your listing and much more.

Manage your listing

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Arecibo Observatory and other visitors
4 questions
Ask a question

See all questions (4)

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?