What's the date I went there? I better check it out! Last time I went Tantalus & stopped by a…read moretrail, I saw something quite disturbing, I should actually tell the Police about it! Although...Police? I only saw like 3 on duty (commander in plain clothes) @ Pearl City, and 1 officer on duty @ window in Kapolei. Thanx fer the heads up!

***UPDATE: Alright. I redid this hike and even I had a hard time figuring out where to go so I…read morefigured I should update this review with more details!*** Whoever bothers to listen to TLC, you're missing out completely. Waterfalls are meant to be chased, especially after Tropical Storms and heavy rain! (Just don't be dumb and hike during those dangerous conditions.) Located deep into Kalauao Valley in 'Aiea, this hike showcases the raw beauty Oahu has to offer. This trail is located off of the well-known 'Aiea Loop trail. Make your way to Keaiwa Heiau State Recreation Area and park on the second level parking once you enter the camping grounds. There, you'll see restrooms and the head of 'Aiea Loop Trail. Be sure to lock your vehicles and not to leave any valuables. Start heading onto the 'Aiea Loop Trail (park opens at 7:00am FYI). Within about 15 minutes of walking along the Loop trail, you'll come across your first fork. Take the LEFT fork. It's a pretty obvious fork. Follow the ribbons. The next fork is a little less obvious. If you see a tower for power lines, you're heading in the right direction. Keep going past the power line tower. You'll seem like you're headed straight (not going down yet.) It'll seem like you are just staying on the ridge for quite a while, but just look for a pink little ribbon hidden on the right side. You'll see a mango tree (which there's a few) but you'll take a RIGHT this time (kind of like a U turn.) The mango tree has a pink bottle cap on it as well as carvings in the trunk (LANZ.) Once you see this mango tree on the right, make almost like a U turn and just keep following the trail which takes you down, down, down into the valley. It's steep, could be wet, just be careful. There's a portion that you can use a rope. It's up to you. Once you hear the stream, you'll follow it as it leads you to the falls. You can cross the stream as many times as you see fit. We found it more difficult going there and probably crossed nearly 7-8 times but on the way back, we crossed about 3-4 times. Just be on the lookout for ribbons on your side. If you see them, there's a high chance you'll have to cross and you'll see the ribbons on the opposite side. Some mentioned passing a "wrong way" rock, but we didn't see this. Just keep following the stream and VOILA, you've made it to the falls. There's a short path that leads you to the lower and upper tiers of the falls. If you jump, just be careful. There's been quite a few hiking accidents on the news lately. Better be safe than to be on the news. On the way up, it's pretty steep and can be extremely exhausting. Take breaks as needed. Honestly, we went on a day that actually rained that morning. We didn't find the hike to be extremely muddy or slippery. In fact, I thought it was relatively safe compared to some of the ridge hikes I've been on. Total hiking time (including a 15 minute stop at the falls): just under 3 hours. I believe the hike is approximately 3.5-4 miles. Tips: 1) Wear long pants or long socks. If you want to jump in the pool, bring a change of clothes. 2) Bring extra socks/shoes/slippers in your car. Your feet will probably be wet by crossing the stream. 3) If pants or long socks aren't your thing, bring mosquito repellent. 4) Bring water because you'll want it after that trek back UP the valley. 5) Go slowly until you find each fork. 'Aiea Loop Trail isn't the most exciting so you don't want to end up doing that!

A beautiful and not too difficult trail (this is for the Moanalua Valley Trail, not the back way to…read moreStairway to Heaven--I didn't go that far). It has a wide walking path and you can go for quite a while before needing to turn back. I did 4 miles in and 4 miles back and it was a great workout. Not too much incline, but enough to make you feel like you accomplished something. Beautiful views and there were hardly any other people on the trail, even on a Saturday. Don't park in the nearby Moanalua Park to do this trail. Park street-side and walk the short distance up.

great and easy parking, lots of places to run around and the trail is very clean. It was busy when…read morewe went but there was plenty of parking. the bathrooms were clean too which was a nice touch. Lots of people all very nice. There wasn't much trash if any and the trails are well kept. we went after a dry season so no streams :( there is leptosplorosis(sp?) so be careful entering the streams with open cuts.

This is currently my favorite park on island, although this is only because it is connected to my…read morefavorite hiking trail on island. I actually haven't really enjoyed this park as a park proper because I simply transit through it to get to the hiking trail (also the campsite appears to be closed off), but it has enough amenities that I was left impressed. There are benches to sit with overhead shelters. Bathrooms helped me clean up after I got caught up in mud along the trail. The sinks were outside the lockable portion, so running water is always available thankfully. There are places to sit and be in community with the gorgeous trees around. I heard the Oahu Amakihi at this altitude even, which was a pleasant and rather welcome surprise. The park warden is a self-described grumpy old man, but he was responsive and helpful when I knocked on his door to report a water leak at the entrance of the Aiea Loop Trail.

I was surprised I haven't written a review for Keaiwa Heiau State Park but maybe I did and the…read moreYelp Ghost stole it! Anyway this is the park that you enter in order to get to the Aiea Loop Trail with breathtaking views from the coastline thru the beautiful Halawa Valley with H3 smack in the middle. The Heiau is well marked and as a Hawaiian Spiritual place it is noted that it is to be respected as such. When you enter the park the Heiau is immediately on your left and parking in marked stalls is required. There are restroom facilities next to the covered pavilion and walkways from one to another. The path to walk into the Heiau is uneven and not easy to access so watch your step if you intend to walk around. I've seen feral chickens, feral pigs, feral cats and campers here. Permits are required for the campers not so much for the aforementioned animals. Dogs are required to be on leash. Beautiful and cooler temperature wise. The drive up Aiea Heights Drive isn't as perilous as others comment about but you do need to pay attention.

This is one of my favorite hikes to do on this island. It was my second time completing it and I…read morewould definitely return!! The first time, the falls were dry so we were pretty bummed. But, the second time, the falls were gushing and had perfect clear water to jump into. I would say the hike to mildly challenging. There are spots that require concentration and focus so you don't fall. If it's muddy, it is way more challenging too. It can be confusing in some spots because it goes off two different ways but if you ask someone, you can figure it out easily. Along the trial, there are many beautiful views and spots for photos. And of course the falls are gorgeous. Highly recommend

Hiked this trail on a somewhat drizzly day. Which was perfect, keeping the heat down and clouds…read morekept it cooler. The views were nice although some were grayer because of the clouds. This is a ridge trail which includes drop offs on both sides although the trail is fairly wide as ridge trails go. The trail climbs up the ridge going down then up starting through forest and then onto a more exposed trails. The trail was slick in places so we wore crampons especially for downhills. Going up the trail you will see Mānana Trail sign to left and waterfall to right. Parking is in a residential area, so keep your voice down. Make sure to bring plenty of water, hats, sunscreen especially on a sunny day. I wore long tights, the ferns are scratchy. Started early to keep from being in sun at the heat of the day.

3.5 stars Okay so,…read morefirst off, THE TRAIL IS SUPER LONG. roughly about 14 miles roundtrip or maybe 16 if you go to see the Haiku stairs. The trail itself isn't all that visible and it's pretty dangerous. and obviously, don't stand too close to the side bc there are false ledges. Definitely BRING GLOVES because there are ropes along the way during some of the narrower parts of the trail and you could easily get cut and then possibly an infection from touching the dirty rope if it cuts you. Also, don't use the railings to support yourself because they're very old and they'll probably break with some pressure. Bring lots of water and snacks because this hike will take a longg time. Some parts may be muddy if you go in the early morning or after it has rained. The view was very nice being able to see all the greenery and tree tops in the mountain. It's a fun hike if you're with people that are fun and make sure everyone knows what theyre getting into because again, this is a super long hike.

ʻAiea Loop Trail is a birder's dream and my current favorite trail on Oʻahu. I don't know how much…read morethe Yelp community intersects with the birding community, but I was drawn to ʻAiea Loop Trail because of the eBird app. I heard both the ʻApapane and the Oʻahu ʻAmakihi on my first trek here, but I did not get to photograph them properly for ID purposes (let alone for aesthetic photography). It was on my second trek on the trail that I was able to get up high enough to video record both the ʻApapane and the Oʻahu ʻAmakihi. It was a magical moment, cut short because I started my hike too late. It was also on this second trek that I also heard what I believe to be the Oʻahu ʻElepaio. I have yet to see it or photograph them, but I believe in the rare bird rule of second attempts: I hear these birds before I see them, and I see them before I can photograph them (naturally). I have to return as soon as I can. If you aren't a birder (yet), there is still a lot to be gained from hiking this trail. The views of valleys full of greenery are simply gorgeous. Perhaps a given because Hawaii, but rainbows appear everywhere here. The trail is better maintained comparatively, and the loop isn't too long, although I accidentally started the loop too late and did not know how long it actually was until I completed it. I was so scared I was going to get stuck on the trail after nightfall, but thankfully I got out before dusk. Mosquitos are still a nuisance here, so be prepared.

I've hiked this trail a few times and have seen downed trees before however nothing like our recent…read morehike. After two heavy rain storms that caused flooding in the Islands some areas of the hike had whole hill sides that had numerous trees down. The trail is only passable because of the hard work of the parks crew. In normally shaded areas there is more because of this. It's really a sight to see the terrifying yet amazing strength of nature. The hike is about 5.5 miles long, not very hard with beautiful views.

We had a kid with us so we only did the paved portion of the hike. Plus my hiking buddy didn't…read morehave shoes. Oops! But since we had this already planned, we went anyway. You need to gain access to the trailhead as it is in the military housing behind Tripler Hospital. Fortunately, my hiking buddy works for the military and we were able to get to the trailhead with no problems. There was ample parking and appears to be fairly safe given that this is on military area. So while I wouldn't recommend leaving your car unlocked, the chances of your car getting broken into is pretty slim. Going up the paved path is pretty straight forward. Just make sure you take the HECO road on the left once you're on the "trail." The incline is steady and you're quickly admiring views of Oahu. We went around lunchtime so the sun was overhead and shade was a bit scarce. I can imagine that once the guavas are ripe, the air would smell guavaey lol. So it was a relief to get to the end of the paved area, do some drone shots and go back down. We would definitely go again to do the full ridge!

Perfect short hike after work and a beautiful view to boot so one of my battle buddies is a fitness…read morebuff funny kind of like me only her arms put mine to shame!! Anyways last week Thursday was her birthday and of course she didn't want to do anything but work out so we decided to do a hike that I have never done before. we had a great time this was a great hike short but it definitely gets the blood pumping and for me it was a great second work out! I also like how they weren't bugs everywhere. This trail trail was also not crowded at all:) you do need to have access to hmm Tripler the hospital base area to enjoy this hike;)

Aiden was amazing, he made our first hike our best hike. He was patient but still pushed me and my…read more15-year-old to the limit. I recommend anyone visiting Hawaii to contact Oahu Hike before booking with anyone else, you won't regret it. I finally feel like I seen Hawaii for the first time. 5 stars isn't enough, Thanks Aiden for making our trip one to remember.

Aidan was AMAZING! Worth EVERY penny. Accommodating. Friendly. Knowledgable. Personable. And FUN to…read morefollow. Highly recommend Oahu Hike if you're looking for a stress free and memorable journey through some of Oahu's most beautiful sites! Can't recommend them highly enough. DO IT! & Ask for Aidan! You won't regret it! 10/10