Mermaid Caves is a 0.3 mile out and back trail located near Waianae, Oahu, Hawaii that features a cave and is good for all skill levels. The trail is primarily used for walking.

Length0.3 miElevation gain16 ftRoute typeOut & back
WalkingBeachCaveViewsRockyHistoric site
Description
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The tide in the caves can be very rough and it often gets very crowded down there. It will require some upper body strength to lift yourself out.

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Reviews (70)
Photos (55)
Activities (54)
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Laura Lewis
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarApril 6, 2021
WalkingGreat!Rocky

Super cool! Not really a joke but definitely a must see spot! Make sure when you got it is low tide. Not low tide about to become high tide. The swells will crash into the cave and it gets a little dangerous in there

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jose Gonzalez
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarApril 2, 2021
WalkingOff trail

Not a hike but definitely a must see.

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Stacey S
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Hiking
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Kimberly Fischer
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WalkingGreat!

My favorite beach. We have seen whales, seals, the most beautiful sunsets and such nice people. We have yet to go on low tide but I saw people enjoying the caves with the tide up and bit. We walked around only. Bring a boogie board and let the small Children teach you how to play in the waves if you are a strong swimmer!

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Erin Schmiedt
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJanuary 24, 2021
Rock climbingRockyScramble

As others have indicated it’s not a hiking trail but a natural underground treasure to enjoy during low tide. Unless you are a skilled rock scrambler and/or capable of pulling up your own body weight I highly recommend bringing a ladder for ease in and out of the cave mouth. And I cannot reiterate this enough but check the tide reports before deciding to climb in there. The ocean swells can and have dragged people out of the front mouth of the cave to their death. There was one just as recent as June 2020 of a 34-year-old strong swimmer trying to rescue a young girl.

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Tam My
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarJanuary 23, 2021
Hiking

Not really a trail but the Mermaid Caves were cool. If you’re in the Waianae, stop by. I wouldn’t make a drive just to see it though. There’s a beach nearby

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Vincent Ferreri
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Hiking

Short walk for a selfie. Lots of people for a "secret" cave.

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Jarrod St. Germain
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Hiking

Great pools! Check the tides, high tide you probably wouldn’t want to go in.

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Joanna Baniaga
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Hiking

Not a hike, but worth checking out!

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Robert Perry
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Hiking

Need to come back and swim!

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Daniel Tose
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Hiking
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SetToRoam .com
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Scramble
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Poome Redman
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WalkingGreat!

What an amazing cave! We loved it

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Courtney Jones
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Great!

Like others have said, it’s not a hike, just a walk to a destination. That being said, the caves themselves were pretty cool.. there are several points of entry, so make sure you find one you’re comfortable lowering yourself into. Make sure you’re confident you’re going to be able to climb back out, because it’s definitely deeper/taller than I personally anticipated. Also, I’d suggest going during low tide so you can enjoy the caves a bit more. Have fun!

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Des Scrutchins
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSeptember 23, 2020
Hiking

Super short walk to the caves, easy drop in, just make sure you go to one of the two far “holes” so you aren’t dropping straight into the waves. Check the tide report, go when it’s lower. If you don’t have great upper body strength, take a ladder to get out of the caves. Friends can also give you a “boost” out, be prepared to get a little scratched up from climbing out of the lava rock.

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Chelsea McKay
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarAugust 9, 2020
Hiking

Not a hike but a great destination!! The tide in the caves can be very rough and it often gets very crowded down there. It will require some upper body strength to lift yourself out.

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Emily Lauren
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarJune 8, 2020
Hiking

More of a short walk than a real hike, but was so worth it. We brought a ladder with us to make getting in and out easier. The water is pretty strong, so be careful. It’s a great photo op. From car door to car door, we were there an hour and got a lot of great pictures. You could do this hike and the Makua Caves in the same day.

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Tiarre Domen
Yellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarGray StarGray StarJune 3, 2020
Hiking

Not a hike at all, more of a scenic walk but scenery was littered at the time. Waves were big and there were a couple of slippers and even a diaper floating in the water of the cave or should I say hole in the reef.

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Tavaris Douglas
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Rocky

Very easy to find. There are many caves but I suggest you find the one with seashell floor. it is by far the safest because the water comes crashing in at crazy speeds. If you can't lift your body weight, highly suggest going with a partner or two. Fun exploration of the caves and you can relax on the beach once you're done.

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Tracy Flores
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Hiking

Not really a hike, but it’s an awesome adventure. Check the tides before you go and bring a step stool if you can. Also, bring water shoes ... yes, they are not pretty, but having you feet shredded by the rocks sucks.

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Youseline Jean-louis
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Hiking

Great hike! Uphill. No shade.

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joe jensen
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarGray StarGray StarMarch 26, 2020
Hiking

Mermaid Caves i wouldn’t really call this a trail, it’s just a rocky beach. It’s kinda cool because there are these big openings in the rock where you can look down and see water flow in and out of the openings. One i saw a bunch of fish in. Just a simple walk on the shoreline, rocky and jagged with openings dispersed all over, careful with little ones.

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Yukari C
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMarch 9, 2020
WalkingRocky

The cave was beautiful!! Check tide table before you go.

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Kimthy Pham
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMarch 3, 2020
Hiking

Easy walk from the parking lot. If you have a light 3-4 step step stool or ladder to climb down/up the hole it would definitely make things a lot easier. Went on a Saturday afternoon and there were a lot of families with kids. Definitely do-able with the little ones as long as you can carry them up and down. Check the tides before you go.

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Trevor May
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HikingRocky
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Riley Glenn
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFebruary 11, 2020
HikingRocky

I wouldn’t call this a hike but it is nice that this will help others find it. Lovely cave, would recommend wearing shoes in the cove but it was lovey! One of my favorite things to show people on the West side.

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Liz Fritz
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFebruary 6, 2020
HikingRocky

Fun little spot, but know your limits. I don’t know if I would have been able to climb out on my own so I’m glad I went with family. As others are saying, check the tides ahead of time. We went about halfway between low and high tide and were fine but I bet it’s beautiful and more spacious in that cave during low tide. Quick walk and a must-see when you’re in the area.

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susan stucker
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coral sea caves. saw people swimming and jumping in. we walked from Napiliokahi Ave.

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