Random things book research turns up

Planning your visit to Mauna Kea and Keck Observatory

“The summit of Mauna Kea at nearly 14,000-feet altitude, presents unique challenges to visitors. Visits to the summit require a 30 minute acclimatization stop at the 9,200-foot Onizuka Visitor’s Center…

“A four-wheel-drive vehicle is required beyond the 9,200 foot level as the air is too thin to adequately cool a vehicle’s brakes upon descent…

“Most car rental companies void the rental contract if their cars are driven on Saddle Road and to the summit…

“Temperatures on the summit can fall to 20 (F) ( -4 (C)) within a matter of hours; it is highly recommended that all visitors to the summit take warm clothing and sturdy footgear sufficient to withstand the elements should the vehicle break down…”

And of course:

“…Winds can reach 150 mph; beyond 75 mph vehicles are at risk for being blown off the road. Caution is advised.”

Makes me want to visit, actually. But perhaps in someone else’s vehicle.