Keahua Arboretum

This park has a lovely stream to play in, picnic tables, hiking trails and a Grove of rainbow eucalyptus trees. Bring lunch and a cooler and you have a pleasant low cost afternoon in Kauai.

As far as I could tell this was nothing more than an outdoor trail or two. That said it runs along a river with a couple of good swimming holes. There was several people there with kids enjoying themselves. There's a couple of places to sit down with picnic tables and have a picnic. Parking wasn't quite clear. Once you get to this place and see a funky looking old bridge you can in fact drive over the bridge and have additional parking on the other side. Don't know if we missed anything because signage is a bit lacking. Overall though, we would definitely go back here again to visit and have a nice relaxing time.

Loved finding these rainbow eucalyptus trees. Really quiet and serene location. Great place to take a walk or hike.

We’ve been to Kauai many times and have never seen these unique trees. SO worth the fun drive!!

Short trail leads along the painted Eucalyptus trees. Trail can be muddy. I wore my trail running shoes. Don't recommend flip flops.

Very secluded, good place for a short hike. Say some animals, lizards, cool trees. No cost.

This is an unstructured arboretum. Mostly just the most amazing Rainbow Eucalyptus trees. I highly recommend it just to see them. Kids can run around, although was a little muddy today. River with fishing. Parking wasn’t full. The only downside was the guy on the motorbike whipping through the park.

Nobody in my travel party was interested in checking this place out so I waited until the last day. I’m disappointed that I wasn’t able to share this beautiful scenery with my travel mates. I’ll definitely bring them back because it’s worth seeing. I think my plan would be too get some takeout food and have a picnic. There are plenty of picnic shelters. You can also get into the water - there’s a swimming hole that looks pretty awesome. Just across the street is a trailhead, but I didn’t take that hike, however, I will next time. The restrooms were pretty gross.

If you want to see rainbow eucalyptus trees this is a must go! It's a beautiful area to walk around. Bring comfortable sturdy shoes. Wear sunscreen and insect repellant. No entry fee and plenty of parking.

We were visiting 'Opaeka'a Falls when someone told us there was Rainbow Eucalyptus Trees and a Stream if you keep following the road. We took his advice and Im so glad we did! Such an exciting find. Peaceful & Quiet, Trees are beautiful, and by the parking lot there's Picnic Tables available if you want to relax and swim in the water. You definitely need 4WD if you're feeling adventurous. Dirt road, Pot holes, Water crossings, and Ankle deep mud! Definitely take in account the weather, don't come here if it's raining heavily. We came on a nice sunny day, but I can't imagine hiking or driving on the trails in bad conditions. If you're more into basic touristy activities, then you should avoid coming here! Please leave your area cleaner than you found it. Side note: There's an outhouse with two toilets but they are gross! No toilet paper. Bring Hand Sanitizer & Wipes in case you need to use it.

This is a beautiful spot for a photo or a picnic. Decent parking and several shaded picnic tables widely spaced along creekside. The bark on the mini-forest of rainbow eucalyptus trees is beautiful. If you've never seen these trees before, this is highly recommended.

If you go here make sure to apply mosquito repellent! They feasted on my legs . Since I visited during the summer, the area was quite dry and I wasn't v motivated to take photos here (probably because of the little vampires )

The initial stop in the parking lot is very beautiful with the rainbow Eucalyptus trees and the walk along the water. But take your keep up the dirt road and you will be able to cross the river. Swim in the refreshing river. Or go all the way to the end where you can't cross the river anymore and enjoy the beauty of this beautiful location.

It's a hiking trail with rainbow eucalyptus trees at the trailhead. GPS will probably get confused. From Hwy 56 in Wailua take HWY 580 about 6 miles, passing Opaeka'a Falls and Kamokila Hawaiian Village along the way(bonus). After taking Hwy 580 the 6ish miles there will be a small parking lot on right and trailhead on left directly across street from parking. The rainbow eucalyptus trees are the first trees on the trail and worth the trip up in my opinion. The hike is an added bonus if the weather is nice.

This place was a pain to find. I entered the address into my iPhone Maps app and my friend and I were directed to some random place that wasn't even close to the arboretum. I switched to my Google Maps app, but it didn't really indicate that you just follow the Kuamo'o Rd. Hwy 580 until it ends. After some frustration, we ended up figuring it out... but we had asked some locals during our attempts to find this place and they had NO idea what place we were asking about. Anyway, for anyone trying to GPS this place? Get on the Kuamo'o Rd. Hwy 580 and follow it until the end. Once you get to the end of the official highway (through some very wooded/secluded/windy looking parts of the road), you'll see the parking spots available, the water covered walkway, and the like. Once there, the arboretum was mostly fun to walk through. Initially, my friend and I came here because we wanted to follow the trail to the poles that remain from the Jurassic Park entrance signs. We ended up picking a different trail though(I believe you can find the entrance poles by following the Powerline Trail here in the arboretum) and just walking. Forewarning, the trail can get VERY muddy... even though it hadn't rained that day. It's also covered in plenty of potholes, and I can't imagine driving the rental vehicle through the pathways... though some people clearly do (over the 4+ hours we were walking, 2 or 3 cars with groups of visitors to Kauai passed asking for directions to certain parts of the park, etc). We were walking along the path towards the waterfall in the arboretum and started hearing gunshots in the background. There's a sign that notes the start of a hunting zone in a certain area of the arboretum, but it's still disconcerting to hear the shots in the background... even when you're not heading in that direction. My friend was getting pretty anxious, so we ended up turning around without getting to the waterfall or the Jurassic Park entrance poles. It *IS* a nice hike... and I had no issues with the mud or having to wade through water of whatever. I had brought appropriate hiking shoes (which I wasn't even planning to clean or take back to the mainland), and that's a must for hiking around the area. There aren't many people in this place either (though you will find some folks driving the path who offer to help get you where you're going, etc.). So it's fairly quiet... minus, uh, the gunshots. TL;DR Difficult to find, but enjoyable sights. Not one of those "can't miss" locations on Kauai though, and I'm kinda regretting that we bothered (since we ultimately didn't get to see much of anything).

I think there is some deceptive advertising going on. This is not an arboretum! You drive really, really far to the end of the road and....nothing. There is a stream. There is also a trail but because it rains so much it is too muddy to walk. So you stand around a few minutes to look at the stream, look at some cool trees with colored bark, and then drive back really, really far. If I had known it was not a real arboretum I would not have bothered.

Not hard to find!! Take Kuamoo Road all the way to the very end, where you will find a river flowing over the road/bridge-like path (see my pics and you will know what I am talking about). If you have 4 wheel drive, you can drive across the river and continue to follow the road, there you will find the Jurassic Park gate. While driving to the Keahua Arboretum, the road will feel endless, but don't worry, as long as you don't take any turns, you will not get lost!! Just follow that winding road all the way up. You can visit Opaekaa Falls and the Wailua River lookout on your way up to see these beautiful eucalyptus rainbow trees. Have fun!!

This is not an aboretum. This is the real jungle hike that leads to some Jurassic Park filming locations, but the catch is you need a machete and williness to hike through more than ankle deep mud on overgrown unrecognizable paths. It's a popular river playground for the locals.

A bit of a drive from town, but very beautiful. I had never seen rainbow eucalyptus trees in person and I was not disappointed. More trees than I expected. Pretty muddy, but there was enough paring and a stream to rinse off in.

These rainbow eucalyptus trees are stunning. This place is so beautiful! We are here in November and the bark was so vibrant. This is truly a must see place before you die!

I wasn't sure what to expect based on the description. This spot turned out to be just a quiet, tree-lined meadow-y spot in the forest with some picnic tables gazebos, and outhouse. There are plenty of parking spots and room to park along the side of the road as well. As a tourist travelling with just one other person, I was underwhelmed. There's no view at the arboretum and, as far as I could tell, no trails to hike to get out to better views. Crossing the flooded road is a novelty, but that's about it. We didn't want to cross the river with our rental car, but I have to admit, I'm curious to see where the road would have ended up (IIRC, it changed to a dirt road not far after the flood). If I were a local, this would be an *awesome* spot to spend an afternoon. You can totally set up a BBQ and play frisbee and splash around in the creek (the same one that floods the road) and just chill out. There are naturally about three divided spots, each one huge, so crowding should not be a problem, ever. I wish we had more spots like this in SF, hence 4 stars. :)

It was extremely hard to find information on how to get here, but you just take RT 580 from Wailua to the end. You can ever stop at Opaekaa Falls on the way up. Rainbow eucalyptus trees are really beautiful. Crossing the creek isn't too bad, but there are huge potholes getting in the parking lot on the other side so if you have a very low car I'd park and walk over the bridge. We did not go all the way to Jurassic gate, but saw a few cars try and turn back around (you need 4 wheel drive)