- This 1.8 mile easy trail starts at the Upper Waiakoa trail. Take this trail up for about 1/2 mile and to the right from the small volcanic cone (cave shelter) and continue upslope. The upper tailhead is located off the Skyline Trail at approximately 7,300` elevation. Trail passes through mixed native sub-alpine vegetation, including groves of Mamane trees (Sophora chrysophylla) and other native shrubs, before descending into the mixed pines of the Forest Reserve. The trail is a mixed use trail shared by hikers, mountain bikers and hunters. For information on hunting seasons, contact the Hawaii State Division of Forestry & Wildlife, Maui District. Please note, that for this trail hiking boots are not necessary. However, there is no water or toilets and camping is not permitted.