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
Sponsored by:
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 483 reviews
Visitor rating
  • 204
    Excellent
  • 197
    Very good
  • 61
    Average
  • 15
    Poor
  • 6
    Terrible
Most recent review
Don't Miss This Incredible Sight

This observatory was featured in two big movies for a reason, it's breathtaking. Seeing first hand this giant radio dish built into the mountain is well worth the trip but you... read more

5 of 5 starsReviewed March 24, 2015
Freemark
,
Arecibo, Puerto Rico
Add Photo Write a Review

483 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
Arecibo, Puerto Rico
Reviewer
4 reviews 4 reviews
5 of 5 stars Reviewed March 24, 2015 NEW

This observatory was featured in two big movies for a reason, it's breathtaking. Seeing first hand this giant radio dish built into the mountain is well worth the trip but you also get to see an excellent little space museum as part of the tour. Highly recommended. If you drive yourself be careful. The roads are quite twisty and the... More 

Was this review helpful? Yes
Sault Ste. Marie, Canada
Reviewer
4 reviews 4 reviews
3 attraction reviews
1 helpful vote 1 helpful vote
3 of 5 stars Reviewed March 22, 2015

This was noty as good as I was expecting. I thought this would have been guided expalining the histroy and what this observatroy means to us. This was more of a money grab to me. Still was good to see but I was disappointed.

Was this review helpful? Yes
Fremont, California
Top Contributor
490 reviews 490 reviews
106 attraction reviews
191 helpful votes 191 helpful votes
5 of 5 stars Reviewed March 22, 2015

A great experience for those interested in astronomy & science. The exhibits are very good, but not infinite like some museums. This is located in a remote part of Puerto Rico so leave time to drive. Leave at least 2 hours to see everything, watch the film, & take the tour - more if very interested. There is food to... More 

Was this review helpful? Yes 1
2 reviews
3 of 5 stars Reviewed March 20, 2015

I was originally very excited to go see it, but I should of just looked at some pictures and watched a video online it would have been a similar experience. Half the staff was very helpful and half the staff was in a group just talking and laughing not helping a soul. The drive up was the best part about... More 

Was this review helpful? Yes
Columbia, South Carolina
Contributor
20 reviews 20 reviews
8 attraction reviews
25 helpful votes 25 helpful votes
5 of 5 stars Reviewed March 20, 2015

The world’s largest radio telescope is definitely worth the trip if you’re in the area. Admission: Adults $10.00, Children (5-12 years) and Seniors $6.00 Open Wed-Sun. You enter into the visitors center and see random displays that was kind of confusing at first. We just wandered around and read the displays, looked at the pictures and listened to recordings. It... More 

Was this review helpful? Yes 1
New York City, New York
Top Contributor
199 reviews 199 reviews
174 attraction reviews
87 helpful votes 87 helpful votes
4 of 5 stars Reviewed March 20, 2015

If looking for short day trips for your stay while in Puerto Rico, a number of companies will bring you out to Arecibo to see the worlds largest observatory, coupled with a stop at an underground river cave system close by. Once you arrive, you can request a van to take you up the steep walkway to the entrance, or... More 

Was this review helpful? Yes 1
Ma
Senior Contributor
45 reviews 45 reviews
32 attraction reviews
8 helpful votes 8 helpful votes
5 of 5 stars Reviewed March 19, 2015

The telescope is worth seeing in person. There is a nice museum attached, with interactive exhibits that kids will love. The drive is very beautiful, as well. Lots to do in Arecibo. I write a lot about Puerto Rico in my blog adventuresintravel.net

Was this review helpful? Yes
Milwaukee, Wisconsin
Senior Contributor
27 reviews 27 reviews
4 attraction reviews
10 helpful votes 10 helpful votes
5 of 5 stars Reviewed March 18, 2015

Like I said, it's totally cool to see it in person. The hike up will nearly wipe you out , but worth it. The visitor center has enough stuff to read for days, then, the short film. Was a bit disappointed we didn't get a tour to ground level or into the actual control room.

Was this review helpful? Yes
wilkins township, Pennsylvania
Reviewer
5 reviews 5 reviews
3 attraction reviews
7 helpful votes 7 helpful votes
4 of 5 stars Reviewed March 18, 2015

Fascinating and shocked that I never knew about this. Huge radio telescope in the middle of nowhere...it is the largest and most sensitive in the world. Just fascinating.

Was this review helpful? Yes
Milwaukee, WI
Top Contributor
93 reviews 93 reviews
15 attraction reviews
61 helpful votes 61 helpful votes
5 of 5 stars Reviewed March 17, 2015

We drove here from San Juan on a Saturday. We could have taken shuttle van up the hill but decided to walk. I am not a fit person and it left me winded, but really it wasn't too bad. The first stretch is walkways and stairs and ends with a steep hill. First we viewed the exhibits which were informative... More 

Was this review helpful? Yes 2

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
3 questions
Ask a question

See all questions (3)

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?