Mau'umae Trail is a scenic hiking trail starting from Maunalani Heights (if you ride the bus that's the last stop of Bus #14). From the trail, you can enjoy great views of Kahala, the ocean, the Ko'olau Mountains and Palolo Valley. The hike is long and it gets tougher as you go along. It is quite narrow in some areas and leads along the top of the mountain ridge. But even if you don't go all the way and only walk a few yards, you can still enjoy great views. The pictures I took below are from the beginning of the trail where it is relatively easy to walk.