Reservations is usually secured two months upfront and up till 6pm the day in advance of your visit. The rate is nominal, $1.fifty for every vehicle (as of this producing in March 2018). Image ID is necessary at the entrance, and payment to visit the National Park (which is legitimate https://sunrise-haleakala33912.blog2news.com/20417451/new-step-by-step-map-for-haleakala-sunrise