Kūlepeamoa Hawaiʻi Loa Loop: Two Ridges, One Sketchy Rope Climb, and 38 Hours of Recovery
Why hike the Kūlepeamoa trail as an out-and-back when you can turn it into a loop? Two ridges, a KST traverse, and you’ve got yourself quite the adventure.
And by adventure, I definitely mean Type 2 fun. After all, it wouldn’t be an O’ahu ridge hike without a little suffering, pushing your limits, and stepping way outside your comfort zone. Looking at you, rope climb with 50-foot drop offs on both sides… more on that later.
But hey, that sense of accomplishment and pure joy when you see your car at the end? Priceless. Makes for one heck of a story too 😉
Trail Snapshot
| Trail name | Kūlepeamoa – Hawaii Loa |
| Location | Honolulu, O’ahu HI |
| Distance | 5.2 mi | 8.4 km |
| Elevation gain | ~2,470 ft | ~750 m |
| Difficulty | hard |
| Time needed | 5-7 hours |
| Route type | loop |
| Good to know | steep sections, rocky, scramble, rope climbs, overgrown, uncrowded, forests, muddy, no dogs |
Getting There + Trailhead
To get to the trailhead, park at the end of Anolani Street. Walk toward the gate marked with a “Government Property. No trespassing” sign. The trail entrance is to the right of the gate, marked by a pink ribbon on the fence.
The paved road continues for approximately 0.15 miles to a water tank. Just past it, a dirt path curves to the right of the fence where you’ll also find a sign outlining the rules of this private nature sanctuary. By entering, you agree to the following:
- No hunting
- No firearms
- No unleashed animals
- No camping
- No disturbing plants or wildlife
- Stay on trails
- Take out all waste
- Respect the silence of nature
Hiking the Kūlepeamoa Ridge
The Forest Approach: Pia Valley to the Ridge Fork
The hike starts in Pia Valley. From the very first steps, you’re immersed in dry forest, surrounded by tall grass and Koa Haole trees lining the path.
Before you go any further, you’ll pass a boot cleaning station with a sign asking you to brush and spray your shoes before and after the hike to prevent the spread of disease and invasive plant seeds. Please take a moment to do this. It matters.
This area is privately owned and managed by a local non-profit whose mission is to restore the valley by planting ʻAʻaliʻi and Wiliwili trees. When I hiked in early June, active restoration was underway — Home Depot buckets, freshly planted seedlings, and pink flags marking new plantings throughout.
Don’t confuse those pink flags with the pink and orange ribbons marking the trail. They look similar but serve a very different purpose.
At 0.25 miles, you’ll pass through the wildlife fence and the gate with the No Hunting sign.
The forest here is peaceful — birds singing, shade overhead. Birders, keep your eyes open for the endangered Oʻahu ʻElepaio, a native flycatcher occasionally spotted in this area.
Then the bugs find you. The stream bed is to the left of the trail, and somewhere around it, they come out of nowhere. And they are vicious. I made the mistake of skipping bug spray before I left, and I paid for it. Wear long pants and apply bug spray before you start. You’ve been warned.
Watch your footing through this section — the terrain gets muddy and uneven, with roots poking out everywhere. A few minutes past a large boulder, you’ll reach a fork. One path drops down deeper into the valley. The other climbs up to the ridge.
You know what to do. We’re going up.
The Split: Where the Loop Begins
Shortly after, you’ll enter a wide open space with what looks like exposed lava rocks — and this is where the loop begins.
To your left, there’s a steep hill with a rope. That’s the way you’ll be coming back from Hawaii Loa to close the loop — file that away for later. To your right, a dirt path leads to a tree marked with a pink ribbon. That’s your way to Kūlepeamoa Ridge.
As you continue right, you’ll re-enter the forest and hit another gate at around 0.75 miles — likely there to manage feral pig movement through the area. Go through it and keep moving.
You’ll push through a stretch of tall grass that presses in on both sides of the trail. This is exactly why long pants are non-negotiable on this hike — between the grass, the bugs back in the valley, and the uluhe fern higher up on the ridge, bare legs will not have a good time.
Don’t Forget to Look Back
Fair warning: the uphill from here is no joke. But the scrambling is genuinely fun. Hands may be required. Embrace it.
As you climb, resist the urge to keep your eyes locked on the trail ahead and turn around once in a while. The views sneak up on you fast. Behind you, the coastline opens up — ocean as far as you can see, with Koko Head and Diamond Head sitting pretty under blue skies.
Then look forward. What’s ahead couldn’t be more different — an overcast ridge, narrow and exposed, with eroded sections carving into the hillside. A little foreshadowing of what’s to come.
By 1.1 miles, you’ve already gained 1,107 feet. Let that sink in.
Weaving Through Pine, Guava, and Everything in Between
If the Kūlepeamoa climb hasn’t humbled you yet, the ridge roller coaster will. From here, you weave in and out of forest so many times you’ll lose count.
When you enter the ironwood pine forest, there’s a welcoming breeze. The ground is carpeted in pine needles so thick and cushioned that I did what any reasonable person would do: laid down, closed my eyes, and did a 15-minute meditation. No regrets. If you ever needed a sign to slow down and be present, this is it.
Between the pine sections, you’ll push through stretches of strawberry guava — my favorite trail snack. It’s considered an invasive species that has taken over much of the Koʻolau range and one of the reasons restoration efforts like the ones you saw back in Pia Valley matter so much.
This trail is a bit of a rollercoaster. Up, down, narrow ridge, forest, repeat. Watch out for the uluhe fern. It is dense in places and gets thick the higher you climb.
Final Push
At around 1.9 miles, you’ll come across two large boulders with a rope heading downward. Do not go down that rope. I don’t know where it goes. It could be a contour trail but in my opinion it’s best to continue up to the ridge.
Don’t forget to look back because the view of the Koʻolau Mountains spreading out behind you is absolutely stunning. Take it in. You earned it.
Oh, and by the way, at 2 miles in, you’re already at 1,851 feet of elevation. Just let that marinate for a second.
From here, the clouds move in fast. By the time I hit the upper section, I was completely socked in — muddy, misty, and navigating a narrow exposed ridge with zero visibility ahead. It’s atmospheric in the best and most humbling way.
Then comes the rope climb. This is the one. Steep, exposed, with drop-offs on both sides that will make most people get very quiet very quickly. I strapped on my spikes, grabbed my Insta360, and climbed. Was I filming while doing it? Absolutely. Did it faze me? Not really. Will it faze you? That depends entirely on your comfort level with exposure and I want you to be honest with yourself before you get there.
After the rope, don’t think you’re done. Three more ridges stand between you and the summit. Smaller, yes. But your legs will feel every single one of them.
The Summits and the KST Traverse
The Kūlepeamoa summit greeted me with a complete whiteout. I grabbed my snacks, took a breath, and pushed through to Hawaii Loa.
From the summit, the KST traverse begins. If you’ve hiked KST before, you know what you’re signing up for — narrow, exposed, and relentlessly sketchy. Add mud and dense overgrowth to the mix and you’ve got yourself a party. I definitely slipped and landed on my butt a few times. Stay safe out there.
It took me about 25 minutes to push through from Kūlepeamoa to Hawaii Loa, and the clouds didn’t lift the entire time.
The Return: Hawaiʻi Loa and Pia Valley
With the summit behind you, it’s time to head home.
Return via Hawaiʻi Loa
Don’t expect the clouds to clear right away. The first mile of the descent is steep, muddy, and still completely socked in. Head down and keep moving.
Around 2,000 feet, the clouds start to break and glimpses of the coastline stretch out in front of you, green ridges rolling down as far as the eye can see.
On a clear day, the views from Hawaiʻi Loa are absolutely stunning and I have proof 😜 Check out my Hawaiʻi Loa post for a better weather experience.
The ʻōhiʻa lehua trees were blooming on the way down, which was a nice surprise. You can hike the same trail twice and it never looks the same.
Pia Valley: The Home Stretch
Important Junction
At 3.95 miles, watch for a pink ribbon on your left. That’s your turn down to Pia Valley to close the loop. Don’t miss it. It’s easy to walk right past it.
The descent is steep. Like, really steep. In 0.65 miles you’ll drop 700 feet, so take your time and watch your footing.
Once you’re in Pia Valley, expect multiple dry stream crossings — rocky, uneven, and a little awkward on tired legs. Fair warning: there is zero cell service down here, and spotty coverage on parts of Kūlepeamoa too, so make sure someone knows where you are before you start this hike.
You’ll pass through a wildlife gate, same as the ones you’ve seen throughout the trail. Once you’re through it, the loop is almost closed and you’ve got about 15 minutes back to your car. Your legs know it, your stomach knows it, and honestly, you’ve never been more excited to see a parking spot in your life.
Is the Kūlepeamoa Loop Worth It?
For me, absolutely! But I go into every hike knowing that views are a bonus, not the goal. I hike to earn my summits, and even on a complete whiteout day, that feeling of accomplishment is enough. If that resonates with you, you’re going to love this loop.
If you’re hiking primarily for views and a guaranteed payoff at the top, this one might leave you frustrated. The Koʻolau ridge does what it wants, and the summit is frequently in the clouds.
What I will say is that the journey itself is stunning. The constantly changing terrain, the solitude, the forests shifting from one to another, the ridge and ocean views on the way up — it’s a beautiful hike from start to finish.
How Hard is the Kūlepeamoa Loop?
This loop is for experienced hikers only. Traversing KST is not something that should be attempted casually. Hawaiʻi Loa on its own is a great ridge hike to start with. But combine it with Kūlepeamoa and a KST traverse and you’re dealing with a completely different animal. Know your limits before you commit to the full loop.
This is one of the harder East O’ahu ridge hikes. If you’ve done the Puʻu o Kona–Kuliouou loop and thought that was tough, this one ups the ante.
The numbers tell part of the story: 5.24 miles, 2,469 feet of elevation gain, and it took me 5 hours and 12 minutes. I also needed 38 hours of recovery. Yes, 38.
What makes it genuinely hard isn’t just the distance or the elevation but the combination. The steep rope climb with drop-offs on both sides, the KST traverse, the muddy exposed ridges, and the long descent through Pia Valley on already exhausted legs. Each piece on its own is manageable. All of it together is a full day of hiking.
Nearby Hikes
Wiliwilinui Ridge
- Distance: 4.8 miles
- Elevation Gain: 1,800 ft
- Difficulty: Moderate
One of the best entry points into East O’ahu ridge hiking. Wiliwilinui offers stunning panoramic views without throwing you into the deep end. A great one to build your confidence before tackling the bigger ridges.
Wailupe Loop
- Difficulty: Hard
- Distance: 5.9 miles
- Elevation Gain: 2,500 ft
A lesser-known loop that connects Wailupe Ridge to Wiliwilinui via a short KST traverse — sound familiar? Similar structure to what you just did, but a notch below in technicality. Expect overgrowth, stream crossings, muddy conditions, and zero crowds. Long pants are non-negotiable here.
Puʻu o Kona – Kuliouou Loop
- Distance: 4.8 miles
- Elevation Gain: 2,400 ft
- Difficulty: Hard
Two ridges connected by a KST traverse again. This loop takes you up the steeper, less-trafficked Puʻu o Kona side and then back down well-maintained Kuliʻouʻou East Ridge, with rope sections and narrow exposed ridge line in between. Panoramic views of both the windward and leeward sides on a clear day make it worth every grunt. A great loop to tackle before stepping up to Kūlepeamoa.
