One of the best adventures we had on the Big Island of Hawaii was to book a Mauna Kea sunset tour. The tour took us in four wheel drive vans to the summit to watch the sun set and learn about the observatories, geology, ecology and spirituality of Mauna Kea.
Pu`u Poliʻahu is prominent cinder cone at the top of Mauna Kea. If you look closely, you'll see a shrine that appears to be a pair of vertical poles.
Poliʻahu is the snow goddess deity. According to legend, she inhabits the summit of Mauna Kea and rules over the northern side of the island, whereas Pele, the volcano goddess, rules Kīlauea and Mauna Loa on the southern side of the island.
In winter, Poliʻahu is evident, as it can actually snow at the top of Mauna Kea. It must be quite a thing to go from sun drenched beaches to snow on the same island.