Pu`uwa`awa`a, owned by the State of Hawaii, was leased to Pu`uwa`awa`a Ranch for many years, and was considered private property. Now, however, you can experience this beautiful place for yourself. Be prepared with water and a snack, as the road is paved but steep and uneven. The hike to the top of the prominent cinder cone is over 3 miles one way, but you need only walk about one and a half miles to get to the cache. In the area is a large cinder pit used by the ranch for the making of roads and so forth.
Along the way you will probably see cattle, sheep and wild goats. You'll also see native ohia trees, invasive silver oaks, and other nature, experience the cooler temperatures of higher elevations and probably a nice refreshing breeze.
Sign in near where the road forks, near the Hawaii Belt Highway. Take the left fork in the road until you come to a hunter's station. You can drive no further, but you can hike the road beyond the cable gate. One word of caution: The gate at the entrance of the park is locked at 6pm. Don't get locked in!