The Kolowalu Trail is a steep, jungle hike on Oahu that climbs through a lush rainforest before connecting to the Waʻahila Ridge Trail, offering breathtaking views of Mānoa Valley and Honolulu. This challenging hike is perfect for those looking for a short but intense uphill climb leading to a ridge with panoramic views. Important Notes: Steep incline for most of the hike, expect a tough workout. Muddy and slippery after rain, proper hiking shoes are recommended. No clear endpoint unless continuing onto Waʻahila Ridge Trail. The trailhead is located at the end of Alani Drive in Mānoa. The first section is a shaded dirt path, quickly leading into a dense rainforest. Expect roots, ferns, and a tropical jungle atmosphere right from the start. Mid-Hike: Steep Climb Through the Jungle The trail gains elevation quickly, with an unrelenting uphill climb. Some sections have exposed tree roots and rocky terrain, requiring careful footing. As you ascend, the vegetation starts thinning, revealing sweeping views of Mānoa Valley. You can end the hike here or continue along Waʻahila Ridge for a longer adventure. Descent & Return: The way down can be tricky due to the steep incline and loose dirt—take your time. The full hike takes 1.5 to 2 hours round trip, depending on your pace.