Oahu’s Mermaid Caves – They’re SO Worth Seeing!
Are you looking to get a bit off the tourist trail on Oahu?
Then let me introduce you to the island’s Mermaid Caves on Oahu. I’d been living on Oahu for a few years before I discovered this spot, but after I did I was there a few times a month.
Visit the Mermaid Caves on your own, or make them a part of a private tour!
➡️It’s entirely customizable! Make an itinerary yourself, or let them know what you like and have the perfect day planned for you. Or a little of both 🤷🏻♀️.
It’s a fantastic place for a bit of adventure – you need to scramble over the rocks and through some narrow openings. And then enjoy swimming, snorkelling and exploring. And the scenery is spectacular!
Don’t forget the (reef-safe) sunscreen! (trust me ☀️🤕.) Keep reading to find all you need to know to make the most of your visit to the Mermaid Caves.
Where to Find the Mermaid Caves
This is kind of sneaky little spot that’s a bit off the radar – though not like it was. It’s out near Nanakuli Beach Park, and it isn’t your usual beach hangout.
It’s all about exploring, climbing, and catching some pretty epic light shows inside the caves, thanks to how the sun hits the water. So, if you’re up for a mini adventure that’s part scramble, part awe, this is a stellar spot to check out.
How to get there
Here’s a quick step-by-step guide to getting to the caves from Waikiki. Google Maps and your GPS will both get you there, too.
- Start on H-1 West: Head out from Waikiki on the H-1 Freeway westbound.
- Continue on HI-93 West: Follow the H-1 until it transitions into HI-93 West, also known as Farrington Highway.
- Drive towards Nānākuli: Continue on HI-93 West towards the town of Nānākuli.
- Turn Left onto Piliokahi Avenue: As you approach Nānākuli, turn left onto Piliokahi Avenue to head towards the coast.
- Reach the Mermaid Caves: After turning on Piliokahi Avenue, make a right onto Keaulana Avenue, which will lead you toward Nanakuli Beach Park.
The entire drive usually takes about 45 minutes to an hour, depending on traffic. There are no signs or anything, so keep your eyes peeled for Haleakala Avenue where you can park.
The caves are accessible from the beach area. Keep in mind that there are no direct signs pointing to the caves here either. Just walk south along the shore for a couple of minutes.
The walk involves navigating over some rocky areas – keep an eye out for small, naturally formed openings along the coastline. These are the entry points into the caves.
Map to the Caves
Exploring the caves
The caves themselves are kind of spectacular. The sunlight reflecting off the water creates some amazing natural light shows, and the entire area lights up.
It’s a unique and otherworldly experience to swim in the caves. And while the caves aren’t a prime area for snorkelling, there is some marine life to be seen.
It’s all free to explore, but it’s definitely more for those who are up for a challenge. It’s not the best spot for little kids or anyone who isn’t comfortable with a bit of climbing.
And Remember ➙
This spot is one of Oahu’s treasures. Please work to keep it beautiful and respect the environment. Trash left behind is a huge problem – don’t be a part of it! Please – kokua!
Insider Tips
• Plan your visit during low tide; that’s the safest time to see more of the caves.
• Make sure to wear sturdy water shoes because the rocks are sharp
• Bring your snorkel and fins if you’re planning to snorkel. A small backpack or cinch sack is a good idea.
• Definitely bring a camera—you won’t want to forget this visit. Waterproof is a good idea.
• To avoid crowds and have a more peaceful experience, try to visit early in the morning or on weekdays when fewer people are likely to be around. It can get very busy.
• There are no restrooms here. The closest are at Nanakuli Beach, about 4 minutes north.
What Else is Around
• Just up the road in Nanakuli you can find some snacks and meals at Taco Bell, Pizza Hut, and some other chain places. But I recommend Aloha Poke and A&G Bar and Grill for more of a taste of Hawaii.
• Nānākuli Beach Park is just steps from the Mermaid Caves and is great for picnics, swimming, and sunbathing. It’s a family-friendly spot with facilities like restrooms and showers.
• Electric Beach (Kahe Point Beach Park), just south of the caves, is known for its excellent snorkelling. It has some currents, though – try not to go alone.
• Maili Beach Park is just north of the Mermaid Caves. This is another beach that’s good for swimming, sunbathing, and spotting sea turtles. It’s less crowded than some of the other beaches.
• West Oahu SUP & Surf is about 15 minutes north of the caves. If you’re interested in water sports, they have stand-up paddleboarding and surf lessons. If you’ve never tried these, this is an ideal opportunity.
• Kaena Point State Park is just a short drive up the coast. It’s home to the Kaena Point Natural Area Reserve and has hiking trails, stunning ocean views, and lots of seabirds.
• Makaha Valley Towers, about 30 minutes north, are perfect if you’re interested in historical sites. The scenery is stunning and it’s a good place to get a glimpse into the area’s history and culture.
While you’re on the island, find out what you don’t want to miss, where the best snorkelling is, and why you should consider staying in Kailua instead of Waikiki or at a resort.
Oahu is absolutely a paradise – get the most out of your visit!
Hauʻoli Kaʻahele (Happy travels)!
More on Oahu:
🍤 5 Day Oahu Itinerary: An Expert’s Guide for 2024
🐡 Best Oahu Airport Shuttles: How to Get to Your Hotel in 2024
🎍13 Best Things to Do in Waimea Valley in 2024
🏝️ Best Beaches in Oahu for Snorkelling, Sunsets, and Family Fun
🍱 19 Cheap Eats in Oahu: Eat Well Without Breaking the Bank
