Mahai’ula section has a sandy beach and dune offering opportunities for swimming and beach-related activities. A picnic area with tables is 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.