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W.M. Keck Observatory

Closed today: Closed
Open today: Closed
Review Highlights
The observatories are not currently accessible to the public due to the on-going confilct over Native Hawaiian rights

We traveled to the Mauna Kea access road to show our support for the Kiaʻi (Protectors) who are... read more

Reviewed 1 week ago
Kahului, Hawaii
Excellent visitor centre

We stopped off at the very small visitor centre which is part of the main administration complex in... read more

Reviewed May 18, 2019
Montrose, United Kingdom
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Traveler Overview
  • Excellent85%
  • Very good9%
  • Average4%
  • Poor2%
  • Terrible0%
Closed today
Hours Today: Closed
65-1120 Mamalahoa Hwy, opened from 10AM to 2PM, Island of Hawaii, HI 96743-8431
+1 808-885-7887
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Reviewed 1 week ago

We traveled to the Mauna Kea access road to show our support for the Kiaʻi (Protectors) who are currently (August 2019) blocking access to the telescopes. If you want to share in this culturally significant action you will be welcomed by the Kanaka; just be...More

Date of experience: August 2019
Thank KamaainaJoe
Reviewed May 18, 2019

We stopped off at the very small visitor centre which is part of the main administration complex in the town and not the one up the mountain. The visitor Centre is really a large entrance area with corridors leading off it to various offices etc....More

Date of experience: May 2019
Thank 187brianm
Reviewed March 13, 2019

It might be confusing to some to see the Keck Observatory Visitors Center along the main highway in Waimea, since the actual telescopes are on top of Mauna Kea at 13,000+ feet. First, the general public cannot visit the actual telescopes. You can see the...More

Date of experience: March 2019
8  Thank F4981JCmichaels
Reviewed March 11, 2019 via mobile

We visited the Keck observatory visitor center while on vacation and found it to be friendly and informative, but we were so disappointed to learn that they no longer allow visits to the observatory. Also, useful to know that children under 14 are not allowed...More

Date of experience: March 2019
3  Thank 552erinr
Reviewed March 2, 2019

Let me clarify one fact about visiting the Keck Observatory: The Keck I & II Telescopes themselves are at the top of Maunakea; the headquarters are in Waimea at sea level. Tours are conducted at the headquarters, where you can wear shorts and flip flops....More

Date of experience: April 2018
Thank WarrenChu
Reviewed January 15, 2019

My son and daughter-in-law are both astronomers on Mauna Kea, so they wanted to show us what it's like up there. It was a magnificent view, especially at sunset, when you can see the mountain top's own shadow on the top of the clouds below....More

Date of experience: February 2018
2  Thank Warren C
Reviewed January 11, 2019

The Keck Observatory headquarters in Waimea on the Big Island is a hidden gem. It is easily accessed and spending an hour or so will completely orient you to the two Keck Observatories on top of Mauna Kea. There are small models and extremely knowledgeable...More

Date of experience: January 2019
2  Thank RetiredKonaLady
Reviewed November 13, 2018

Short on time, we could not take the time to go up to the observatory which requires an hour of acclimation to the thin air both ways. We opted for a tour of the center itself and our docent was extremely competent and able to...More

Date of experience: November 2018
Thank Gamine1949
Reviewed April 29, 2018

You drive from sea level to almost 14k ft ...and the day we went, it was raining down low, but on top we were above the clouds. Incredible views....The Keck telescopes have a small public viewing area...and very much worth a few minutes, as the...More

Date of experience: April 2018
7  Thank Karl S
Reviewed April 17, 2018 via mobile

This is a great tour and gives a lot of information about the work being done by the Keck Observatories on Mauna Kea. We had been to the summit twice on previous visits to Big Island but had never managed to get to Waimea when...More

Date of experience: April 2018
Thank AMTLondon
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Questions & Answers
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May 1, 2018|
Response from AMTLondon | Reviewed this property |
We went to the Observatory office in Waimea. I don’t believe they ate open to visitors at night as this is when the work is done. The road to the summit is tricky and only accessible by 4wd and not rental cars. We have been... More
October 8, 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