How long is the highway off of Wai' anapanapa Road where Wai' anapanapa State Park is located?
Waiʻanapanapa State Park:  It is located at the end of Waiʻ anapanapa Road off Hana Highway, 53 mi east of Kahului, Maui. Hana Highway: The Hāna Highway is a 64.4 mi long stretch of Hawaii Routes 36 and 360 which connects Kahului with the town of Hāna in east Maui.
64.4 mi