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W.M. Keck Observatory

65-1120 Mamalahoa Hwy, opened from 10AM to 2PM, Island of Hawaii, HI 96743-8431
+1 808-885-7887
Review Highlights
Amazing keck observatory headquarters

The guide, David, shared all that is happening at the Twin keck telescopes on Mauna Loa. He... read more

Reviewed 17 July 2017
via mobile
Do not miss this gem!

We stopped by shortly after it opened at 10 am and joined another couple with the docent. The tour... read more

Reviewed 24 June 2017
Naples, FL
via mobile
Read all 29 reviews
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  • Excellent84%
  • Very good3%
  • Average10%
  • Poor3%
  • Terrible0%
Travellers talk about
“mauna kea” (6 reviews)
“model” (3 reviews)
“science” (3 reviews)
Closed Now
All hours
Hours Today: 07:30 - 17:00
65-1120 Mamalahoa Hwy, opened from 10AM to 2PM, Island of Hawaii, HI 96743-8431
+1 808-885-7887
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Reviews (29)
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1 - 10 of 28 reviews

Reviewed 17 July 2017 via mobile

The guide, David, shared all that is happening at the Twin keck telescopes on Mauna Loa. He explained some of the current research that is possible with these telescopes.Showed us how the hexagonal mirror construction worked that was developed by Jerry Nelson, astronomer. We were...More

Thank conniem322
Reviewed 24 June 2017 via mobile

We stopped by shortly after it opened at 10 am and joined another couple with the docent. The tour lasted about an hour but the time flew by and we learned so much. This is a tour everyone would love to learn what amazing discoveries...More

1  Thank ceg51
Reviewed 22 April 2017

I was impressed with the enthusiastic docents explaining the Keck Observatory, and all the heavens. But when it comes to displays, charts, photos and interactive exhibits, not so much. It was still worthwhile to visit, as I have no plan to drive up the mountain.

Thank Miriahm D
Reviewed 17 February 2017

Open from 10a to 2p Mon thru Fri. Visitors are welcome to the lobby with many displays. The very knowledgeable receptionist gave us a very informative tour of the pictures and displays. Of course you cannot wander around the private offices of the astronomers which...More

1  Thank Bill H
Reviewed 3 February 2017

We had some extra time so we stopped by to look. As other reviewers state, this is a very small and modest exhibit showing photos, models, floor plans, etc of the real telescopes on top of Mauna Kea. It's definitely for the science geeks in...More

1  Thank Mark V
Reviewed 5 May 2016 via mobile

If you're interested in learning a lot about NASA, telescopes, and satellites then you'll be getting a treat. However if you don't like any of those then that place isn't for you, sorry.

1  Thank Darnell G
Reviewed 5 March 2016

It was truly an experience. We met and talked to one of the astronomers who worked at the observatory and he told us about the largest telescope in the world that is being built to join the other telescopes at Mauna Kea. You will get...More

2  Thank lcomeaux
Reviewed 14 January 2016

We stopped in here on a whim with hopes of getting some insight into the operations of the telescope on Mauna Kea. We stood in the entrance area for about 45 minutes listening to some interesting background about the telescope, its history and operations. Afterwards,...More

1  Thank NHAnimator
Reviewed 22 November 2015

If you go to Mauna Kea, AND have a 4 wheel drive unit and lots of warm clothing you can drive to the top of the mountain--but you still can't see the telescopes. If you want to see how those pieces of technology work you...More

5  Thank oldpo
Reviewed 30 October 2015

was excellent. We did not have a four wheel drive vehicle nor the time to visit the observatory on top of the volcano. But the Visitor Centre in Waimea, where the astronomers work on the data from the mountain top observatory was fascinating. A knowledgeable...More

4  Thank Irwi
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Questions & Answers
Catherine A
9 October 2015|
Response from lcomeaux | Reviewed this property |
You really do not see much in the Visitors Center. It is just a room with a part of a telescope and pictures of the telescopes on Manua Kea. It is where all the information from Mauna Key is sent and studied. You cannot... More
Evan V
30 December 2014|
Response from lcomeaux | Reviewed this property |
I will make this short. You do not need to take a tour. You can drive,but not to the very top unless you have 4 wheel drive Yes there is parking and a visitors center.Very dark at night, be careful driving,but do go.

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