The Mauna Kea trip to the summit isn't cheap, and it's an all-day outing, but it's worth it.
All in all, it was a fantastic expedition. Well worth the cost and the time. Book a day/night that has a dim moon for optimum stargazing, and be prepared for the cold at the summit. It is very much UNLIKE the rest of the island climate. This one is practically all-inclusive, and a must-do for anyone interested in the earth or astronomical sciences.
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