Arecibo Observatory
Arecibo Observatory
4.5
Observatories & Planetariums
This location was reported permanently closed
About
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.
Duration: 1-2 hours
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4.5
1,033 reviews
Excellent
504
Very good
366
Average
113
Poor
23
Terrible
27

Nathan Smith Jr
Los Angeles, CA669 contributions
Jul 2022 • Family
Arecibo is such a massive disappointment. I’ve wanted to go here since I was a little kid. Always wanted to be an astronomer. 15 bucks per person for basically an 8 minute Youtube video and then a decent view outside. Of course there’s a gift shop here to get more money lol. Absolute rip off. You’re honestly better off just spending time watching a YouTube video at home. The drive up the mountain to get to the observatory is the most interesting part.

There is a massive hill to get up to the visitor center as well but all you have to do is ask the security guard to call the van to take you up to the top. A lot of people who write these reviews clearly don’t have common sense lol. If you’re scared to go up the hill, ask for help.

Regardless, a waste of time.
Written July 17, 2022
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Thomas M
Durham, CT23 contributions
Feb 2020
Our visit was limited by precautions undertaken because of the rash of earthquakes in PR during this time. So we were NOT able to participate in the VIP tour that is recommended by so many. The upside is that they are transporting all visitors by car up to the Visitor Center, so no climbing problems. Film is very informative, and necessary for understanding the nature of the Observatory. Concept and scale of the site is impressive - amazing to imagine how it originated. Displays in the Visitor Center are informative and well-designed for children to get, so this is a good family visit.
Written February 10, 2020
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

VGTravelGirl
St. Albert, Canada1,827 contributions
Dec 2019 • Couples
When you arrive you drive up a small hill and park. If the parking lot is full, you may have to park at the entrance. There is a staircase from the parking lot to the observatory is steep, but not too long. The exhibit space in the entrance has some interesting displays and some are interactive. You watch a 15 minute video before going outside to see the telescope. The guide who spoke after the video and on the viewing platform was very informative. There are lots of clean washroom facilities on site and a small food kiosk. It would be nice if the video was brought up to date.
Written January 3, 2020
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Anna Lisa D
4 contributions
Mar 2022
The visitor's center opened 2 days before we arrived (March 2022). We had to get a reservation online to visit. It was totally worth it. Be sure you arrive a good hour before closing so you have time to walk the steep hill from the parking lot to the visitor's center. The staff was newly trained and eager to help. We showed up just 1 hour before closing and were the only visitors there. The exhibits inside are varied and fascinating. There is a short movie to watch about the history of the telescope, including its collapse and continued study using the old data. You get to go outside and see the remains of the towers and saucer in the sink hole. Very cool!
Beware, the walk up the hill is very steep and longer than you expect. There are stairs. Kids can do it, but it would be tough on people with joint issues or breathing problems. There is an area halfway up to rest if needed. We weren't paying attention to handicapped access so I'm not sure if there's parking uphill closer to the visitor's center.
Written April 24, 2022
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Willow M
Lake Wales, FL3 contributions
Oct 2023 • Couples
Do not waste your time on 2 hours of winding roads, only to be told that they closed 2 months ago. I called in advance, the recorded message said they were open and how much the entry fee is. The guard was very abrupt, closed. He was not aware of the recorded message on their phone.
Written October 11, 2023
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

sunnyrga
Saskatchewan, Canada102 contributions
Nov 2019 • Couples
Well worth your time though be forewarned the climb from the parking lot can be challenging for anyone with mobility issues. The displays are interactive, fun and well done! It will take you a couple of hours if you like this type of science. It really is quite fascinating even for non science nerds. The structure and building process is interesting as well. The cafeteria and food is quite limited so be prepared.
Written February 11, 2020
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

eileen d
Vienna, VA8 contributions
Feb 2022
We hoped to maybe see the dish from an observation platform, but the whole site is still closed to visitors (we were there on Feb 14). It was an interesting curvy road to get up there, though, and see Puerto Rico away from touristy areas. We saw some towers above the trees. The karst landscape is impressive. The security guard was very nice. There were clean restrooms at the gate. Get confirmation from the site before you go. The guard thought it might reopen in a month or two, but I very much doubt it.
Written February 20, 2022
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Jenny M
Ankeny, IA363 contributions
Jan 2023 • Couples
Neat to see the dish and columns. Need to have an understanding of science. There are hands on experience for kids. Purchase tickets in advance online $15 for adults. It is not hard to find, there are signs from Arecibo which is approximately 30 min away. There are a lot of steps and steep hill to climb to get to the observatory. There is a small gift shop. You can watch an 8 min video of the history. You can learn a lot by going. There are actual remnants of the antenna.
Written January 30, 2023
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Andrea M
Barre, MA119 contributions
Jan 2020
This is the largest radio telescope in the world. It is free to go. I must warn you tho. The hike from the parking lot up the to observatory is quite exhausting but if you need help there is a shuttle. We were so impressed the visitor center, our tour guide and the immense size of the dish. Don't fall for tours. It is free to go unless you're a large group.
Written January 29, 2020
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

Wine Rulz
San Diego, CA42 contributions
Apr 2023 • Family
It was interesting to visit and I would have loved to see it before the incident. There are few things to do inside and an outside area, but generally I wouldn’t go out of the way for just this site. We went to see Camuy River Cave Park, which is about 20-30 drive and had a couple of hours to kill before our reservation so it worked well.
Written May 9, 2023
This review is the subjective opinion of a Tripadvisor member and not of Tripadvisor LLC. Tripadvisor performs checks on reviews as part of our industry-leading trust & safety standards. Read our transparency report to learn more.

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Arecibo Observatory - All You Need to Know BEFORE You Go (with Photos)