Go in the late afternoon. You really need 4WD because of the grade. Fill up your gas tank (they won't let you go to the top with less than 1/2 a tank), take some warm clothes and lots of water. Acclimate at the ranger station...More

in the evening free telescope to watch planets (we seaw Saturn) restroom and hot water available, also you may buy hot chocolate (1$) Behind the buildking there is silver garden - go and check yourself.

We were very excited to watch the sunset and see the stars but the entire volcano was socked in so we will have to try again next visit. Take your own food, the "soups" and hot chocolate are in packets you buy and add to...More

We only went to the Visitor's Center. Amazing star viewing. Astronomers on hand to guide us. Very cold.

The centre is a great place to get some info on the telescopes at the summit. Don't just drive by...make sure you stop and check it out. Don't forget to pick up some space ice cream!

Great spot for viewing sunset above cloud line as well as starts once sun is down. It is cold up there....bring a coat if you plan to go. The altitude is also a factor for some people so you should consider that before going. Only...More

Awesome. Go on the free stargazing nights to be amazed and educated with some hot chocolate. Please don't be one of those people who use their phones or shine flashlights after dark.

The visitor center for Mauna Kea is a very nice one, but compared to the one at Haleakala on Maui...it is lacking. They have all the usual gifts and a video viewing area with lots of information. They also have the telescopes, which is great...More

Imagine you are standing at 4208m high, above clouds and enjoying view of Big island of Hawaii. This is also the highest Observatory in the world. There is visitor centre at half way to the summit and all visitors must stopped at there for safety...More

Small and a bit crowded when we when as it was just before sunset. Telescopes set up but long line up after the sun set. Gets cold when sun sets so bring extra layers. Worth the trip if you are passing by on saddle road.