Hahaione-Kuliouou Loop Trail is a 4.3 mile moderately trafficked loop trail located near Honolulu, HI that features a river. The trail is rated as moderate and primarily used for hiking.
After two dry river crossing, it is pretty much straight up climb to the Koolaus. There areseveral rope sections but not difficult. Some parts can be slippery due to pine needles/seeds. Shouldn't take too long to reach the top with views of Waimanalo etc... There are many forks along this trail but keep left in the beginning secton until you hit the ridgeline. You will reach tree with two arrows. Take right to gain the ridge. Also, you will pass a encampment with a blue sofa! The trail in general is in good condition and you can feel the cool breeze.
One area by the peak is very steep and slippery if it rained recently.
We started at Hahaione and hiked over to Kuliouou. Beautiful and shady. When we got closer to Kuliouou trail we had to hike down side of mountain and it was steep, but doable since it hasn't rained much lately. Would be too slippery in wet conditions. Loved the whole journey. Didn't see any other hikers until very end.
We completed this loop in 2:55. By the time we got out, it was already sundown. It is best to do this hike with ample day light as it can be tricky finding your way with this many forks and off trails along this loop.