Haleakalā National Park is open year-round, 24 hours a day, 7 days a week, except during severe weather closures. Hours The park is open 24 hours a day. Park Headquarters Visitor Center (7000 ft. / 2134 m) - 8:00 a.m. to 3:45 p.m. (Beginning March 10: 8:00 a.m. to 3:45 p.m.) Haleakalā Visitor Center (9740 ft. / 2969 m) - Sunrise to 3:00 p.m. Kīpahulu Visitor Center (coastal) - 9:00 a.m. to 5:00 p.m. Visitor Centers Park Headquarters Visitor Center, Haleakalā Visitor Center, and Kīpahulu Visitor Center are open daily and year-round subject to staff availability. All visitor centers have cultural and natural history exhibits. Books, maps, and posters are offered for sale by the Hawaii Pacific Parks Association. Naturalists are on duty during business hours to answer questions and help you make the most of your visit. There is a pay phone near both the Park Headquarters Visitor Center and the Kīpahulu Visitor Center.