Donna, our tour guide and the only woman tour guide to Mauna Kea, was wonderfully helpful and knowledgeable. Hunter, our astronomy tour guide, was equally knowledgeable and provided a fantastic tour of the stars. I highly recommend this tour to the summit to see the sunset. And the stargazing above the clouds was amazing! In addition to stars, we saw a shooting star and several satellites over head. I hadn't anticipated seeing stars usually only seen from the Southern Hemisphere so that was a great bonus!