Mahai'ula section has a sandy beach and dune offering opportunities for swimming and beach-related activities. A picnic area with tables and portable toilets are available. A 4.5-mile hike north through this wilderness park on the historic coastal trail, Ala Kahakai, leads to Kua Bay. Midway, a hike to the summit of Pu'u Ku'ili, a 342-foot high cinder cone, offers an excellent view of the coastline. Dry and hot with no drinking water. Kua Bay section at north end of park offers beach-related activities.
Located on Queen Ka'ahumanu Highway (Hwy. 19), 2.6 miles north of Keahole Airport. Separate, unpaved 1.5 mile access roads from highway lead to Mahai'ula and Kua Bay sections of the park.