Awesome, that only works in Hawai'i. Start at the beach and end at over 4000m. The driveway to the visitor center is long but easy to do. The rest of the way is not asphalted and in parts is very steep. The thin mountain air is not to be underestimated. At the top you are at 4207 meters, which is at least driven (you start on the beach or ;-)). Bring enough to drink and warm things. Otherwise legendary.