Explore To do Oahu - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

To do Oahu Map
12 hours ago

This morning, my friend and I read a review that said, “F this trail I almost died” and we didn’t take it seriously. I understand now what the person was talking about. She and I are experienced hikers and climbers, I’d say, and we both have a very high — what you could call — “adventure tolerance.” This trail was, straight up, unsafe. Perhaps it was different before heavy rains, but much of the trail was crumbling off the mountain. Based on a below review we did the trail counterclockwise, which I was very grateful for, because there was a very muddy wall with a flimsy rope.....like, that was the trail. And on the side of that was crumbling cliffside. My friend and I looked at each other saying maybe we should go back, but it was nothing we weren’t used to, especially after doing Moanalua, so we decided as long as it didn’t get worse we would keep going. However, it continued to get worse, so much so that we couldn’t really go back because we were afraid we might slip down in the mud going downhill instead of up. There were several times when the trail was as wide as one of my boots. I was never not confident that it would be fine, though I can say I’ve never been happier to see stairs once we finally summited — mind you we believed we had summited several times before being discouraged to see yet another uphill ridge-line with even more slippery cliffsides. When we got to the summit, we saw a sign facing the other direction, and when we turned to see what it said it was a warning sign for a hazardous cliff. I would definitely listen to that sign if you do the trail the clockwise direction, and turn around, and I do not recommend doing the trail the counterclockwise direction after how hairy the ridge-line was. It seems as though the trail has definitely degenerated from lack of use and has perhaps begun to fall down the cliffside, on the right and the left, making it perilous to attack.

Made it almost all the way to the K2 summit on 7/4 but it was pretty cloudy and a few of us didn’t feel comfortable making the last climb of the hike. The whole thing was really pretty but definitely some slippery spots - the trail did give way on one of the really narrow parts and I took a tumble about five feet down the side of the mountain but was able to dig my fingers in and stop myself. If you’re going to hike in Hawaii, don’t wear tennis shoes. Everything is muddy. I immediately ordered real hiking shoes and have been fine ever since.

4 days ago

This was for sure closer to 10 miles one way, beautiful trail with lots of tiny waterfalls and beautiful views.

Hiked 8/12. Challenging but enjoyable hike. Agree with earlier reviews…wear pants! It’s extremely overgrown most of the way. I also stopped at the 3.5 mile peak due to heavy cloud cover and fog. The risk wasn’t worth the gain to fight my way the additional quarter mile to the Lanipo peak. That portion of the trail is basically non existent. Plenty of flowers and creepy crawlers to check out along the way.

I did this hike on a rainy day during a weekday, I’m sure it’d be twice as amazing on a dry day. The hike itself is a great challenge. I did it solo, it gets challenging near the end but I met a couple of adventurers already at the top who helped me along the way. It was good challenge and I’d definitely do it again if I had more time.

lots of ups and downs and good views along the way make this a fun hike that I'll definitely do again. pretty exposed though, so make sure to have plenty of water. last portion rather muddy but not usually so for a ridgeline hike ascent. final 0.2 miles along KST has a lot of slick spots and a few portions without a real trail, which I'd avoid if you're not looking for a challenge. about 4:30 in decent weather by an experienced hiker, suggest pants for second half or so.

Great hike and worth your time. You’re going to want to go on a clear day when it hasn’t rained much. Note parking may have to be in the neighborhood below.

An alternate way without going through security is starting the hike from Wailupe valley,and climb steeply till you hit the dirt road before the start of the steps.

I have hiked many trails in Hawaii and this view and trail is an all time favorite. The view I like even more then the super popular diamond head and koko head trails. You will hike all the way up the mountain where there is usually a big cloud of fog but if you go on a clear day the 360 view is just amazing. Its about 3 hours round trip if you take time to enjoy the views. When I first did the trail I was confused because the only way to get there is through a security gate in a private residential area. Turns out you need to go up to him tell him you are there for the trail, give your id and receive a one day pass. There is no other route to go to get there. It will get muddy but the path is wide enough such that if you position yourself properly you will likely just slip and get dirty as opposed to falling to your death. This is a must do trail here it should be full 5 stars.

15 days ago

This hike stitches together two great trails: Kolowalu Finger Ridge Trail (starting near the back of Manoa Valley) and Wa’ahila Ridge Trail (which connects you with Awa’awa’loa in the Ko’olas).

Look for roadside residential parking near the shared Pu’u Pia trailhead. Residential parking manners apply.

After about .2 miles on the main trail, peel right to begin Kolowalu (there’s a metal sign to mark this turn). Kolowalu is a workout with 1600’ of elevation gain happening in the first mile of the trail. This section of the hike is a wooded hill climb with a few brief glimpses of Manoa Valley in the last 20 percent the ridge. At the top of Kolowalu, turn left and follow Wa’ahila Trail 2.5 miles to the summit of Awa’awa’loa (Mt. Olympus).

All along Wa’ahila, the views are stunning. Near the peak, it gets pretty steep and muddy. However, there is a reliable series of ropes and mud ‘stairs’ to assist your footing.

If you’re in good/great shape (and moving pretty swiftly), this hike could take anywhere between 2.5-3 hours. Trail runners can do this in 1.5 hours. This is not a hike for dogs or children.

Payoff: 10/10
Intensity: 8.5/10
Risk: 7.5/10
Wayfinding: 9/10

the trail head starts near the end of the paved/ dirt road, which has many no trespassing signs. the warning signs are marking private property on both sides of the road, not the road itself. the trail is easy to navigate and is frequented by motorcycles. the top of the trail is muddy. the hike/ run is better than the falls which are small. don't expect waimea.

all in a great run.

The best you'll love all the guava and all the different kinds of trees.

mostly uphill hike, trail in pretty good condition for most of the way although some may struggle on a few muddy portions/climbs. views on the way up of west side well worth the hike even if summit is foggy. at a good clip for an experienced hiker 4 hours round trip. fair number of people on trail after about 10am on a weekend

Took us 1.5 hrs to reach the end of trail. A bit on the cloudy side. We could see ( with my telephoto lens) tanks and amphibious vehicles all along Bellows Beach and the tarmac area. It must be the RIMPAC exercise going on at the present moment. Quite a good cardio workout and its been awhile since we came up here the last time in 2016.
Wiliwilinui Ridge Trail is very similiar to Hawaii Loa Ridge , Kuli’ou’ou Ridge Trail and Mariner’s Ridge ( closed). A longer version of these are the Waahila Ridge Trail to Awa’awa’loa or Olympus and Mau’umae Trail to Lanipo.

Fun, moderate trail to the ridge. The final stretch has rope work and is fairly steep but only for a short little while. We started with a group of about 14 but then only 5 of us made it to the very end. Even if you don't hike the full length, the views are worth the hike and you can turn around at any point since it's an in/out trail. This trail connects to Ka'au - would love to come back one day to go up this trail then come down Ka'au side. Final note: keep an eye on the weather in the days before doing this hike, there are parts that would essentially turn into mudslides after heavy rains.

Hardest hike I have done...1 ridge climb. Made it to the top which was socked in... very muddy today. But a great day!

nature trips
29 days ago

This hike is closer to 10 miles. Be prepared for passing showers and a slippery, sometimes precipitous trail. The Waimanalo end of the trail is too narrow for bikes.

nice hike close to Honolulu. lots of mud and a few tricky spots even in good weather. often cloudy at the top but still a fun one. don't need pants for this one but some shoes with tread are helpful. 3 hours at a decent clip in good conditions for an experienced hiker, probably around 5 for less experienced taking breaks. shout-out to Joel, nice running into a fellow AllTrails hiker!

Hiking the 3.5 miles to the first peak, Ka’inawa’au Nui Summit, is peaceful and beautiful. I went during the week and only saw one other person the entire day. As mentioned many times before, DEFINITELY wear pants. Mine were pretty much destroyed by the time I was done but better them than my legs. However, the reason I feel compelled to write this review is to give a heads up about the last part of the trail, the section from the Ka'inawa'au Summit to Lanipo Summit...
I DO NOT recommend hiking this part of the trail unless you are a very experienced hiker! It is EXTREMELY overgrown, so bad that I wasn't even sure there was a trail there at all and had to use my hands to clear away vegetation the entire time just to be sure that my foot would land on earth, and not thick roots disguising a sheer drop off the side of the mountain. This, and the fact that the ridge is very narrow, very steep, and the winds can be very strong up there make it extremely sketchy. Also, the plants are so overgrown that their are vines constantly wrapping around your ankles and threatening to trip you as you make your way, which adds another element of danger to the mix.
The views from the first summit are beautiful, and getting there is quite an accomplishment in itself, and although clouds and wind rolled in while I was making the final ascent to Lanipo Summit, I cannot imagine that the views could have been any better than at Ka'inawa'au had it been clear. Unless someone does some major clearing of the trail, it is simply not worth the danger and difficulty to do the last part in my opinion.
This being said, the rest of the trail has spectacular views from the beginning, and a nice mix of ascending and descending sections that help you not get too worn out during the 7+ mile roundtrip hike.
The whole thing is overgrown though, so just be extra diligent about only stepping on the path because some sections offer a false sense of security when actually there is a small area that is solid ground.
Overall it's a moderate hike until the very end, and really nice, but I regret attempting the final quarter mile section and highly recommend sticking to the first summit.

What a rewarding experience. I urge anyone to complete the full distance till you cannot go any further, use caution. The beginning is very energy consuming and a constant incline, once you move past the sign where the maintained trail ends is where it gets exciting. Be careful

great hike overall. close to Honolulu, moderately challenging (lots of stairs), decently maintained trail, and great views along the way and at the summit. to get to the trailhead you need to get a pass from the gate which requires a valid ID from the driver and caps the number of people on the trail. can get a little slick when it rains. at a decent pace around 2 hours but closer to 3-4 if you need to take the stairs slowly or long breaks

I went up Ka’au Crater trail, hiked along the ridge to mt Olympus, and came back down this trail. It was amazing, but I was pooped! I timed it poorly, and finished the lower half of the trail in the dark (the sunset and night pictures overlooking Honolulu are from me, lol.)

It was dreamlike. The top of mt Olympus was isolated from the rest of the island by a cloud. Coming down, I was suddenly exposed to a view of sunset over Honolulu. I was covered in mud from Ka’au crater, and tired out from climbing up the hill so fast to try to get back before night. Nightfall on the ridge was magical. The wind in the trees was like a lullaby. Even though it’s under 10 miles from Honolulu, the stars are much clearer there.

Is night hiking a thing? I guess there are a few places I could have died. And I admit I missteped and fell a few times.

first one out, got to top around 8:15am. passed around 20 groups on the way back down. it was a perfect day for this hike - trail was dry, slow and steady breeze kept it cool, and clouds were high enough at the top to see the full 360. stairs are the worst but the view at the top makes it worth it.

All I can say is that the struggle the entire way was absolutely worth it. Once you hit the ridge, it’s gorgeous views the entire way. I would absolutely check the weather beforehand and also recent reviews to see what the status of the trail is because it does get pretty narrow and there can be a fair amount of mud. Regardless, so worth it! I’d do it again, of course, after my legs recover.

Hiked to slightly past the halfway point. A challenging, rugged trail with some tricky terrain problems and a ton of mud. Great workout.

Some nice views in places, otherwise you're in the thick of the trees. Pretty humid; rainforest hiking!

I loved this hike. Not too long, not too short. There were interesting adventurous parts, but not too much where I felt unsafe or exhausted after the hike. I was interested in what I was seeing and doing the whole time. The mud doesn’t start till about half way through, and is not bad. The waterfalls were fun to explore. The pools are just deep enough to swim around in. I really enjoyed my overall experience. I would do this one again!

Was a really nice trail. Be sure to bring spikes with you or sturdy hiking shoes as the path was very muddy. Took 3 liters out there with me and only had 1 when I got to the bottom. Lots of incline and decline.

you gain elevation quickly about a 1/4 in, very steep and muddy in some areas...feels like the climb is never ending...id rate this hike as a fuckthis

2 months ago

A little challenging at some places, but the efforts are rewarded with the nice views. The beginnng of the trail isn't so beautiful, but once you hit the ridge, you get some nice lookouts along the way. However, if you want your trip to worth it, make sure to looked at the weather before. It rainned the day before I did it, and the trail was slippery and muddy. At some point, we had to use the ropes, so if ou attempt it on a rainny day, prepare yourself to get your hands and your shoes dirty! I'd recommend to wear long pants as well, cause, I would say the last third of the trail isn't so well maintened and is really bushy.

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