25 Oahu Hidden Gems for Exploring Off the Beaten Path

Left to right: Mermaid Caves, Byodo-In Temple, and Army Beach

👋🏽 Note from the author: Did this article impact the way you planned your trip? Have any questions? Please comment at the end of the article! It helps this blog grow and helps me know what types of articles to write more. 💛

The Best Hidden Gems of Oahu, Hawaii

I visit Hawaii several times a year, but I travel a bit differently than the average Hawaii vacationer. I much prefer to travel off the beaten path and experience destinations more like a local.

In this article, I’m sharing my favorite lesser-known things to do and places to see on Oahu. I can fully recommend each place because I’ve visited them all and would return in a heartbeat! These beaches, hiking trails, botanical gardens, local businesses, and other spots might be lesser known but they’re all 110% worth your time if you can fit them into your trip.

By the way, all of these spots are saved on my (free) interactive Oahu map, that you can access on the go during your Oahu trip. Be sure to get it here before you leave for Hawaii!

You can’t help but to gaze up anytime you see Oahu’s rugged green mountains, like these ones at Kualoa Park!

A Note on Responsible Travel

Practicing responsible travel is essential when visiting anywhere on Oahu, especially the less touristy areas that locals call home.

Approach your off-the-beaten-path explorations with humility and respect.

Cleaning up after yourself is just the beginning—consider leaving a place better than you found it. If there is trash left on the beach, pack it out.

Respect locals you encounter and any signs that warn you about trespassing or other dangers. There are some dangerous (but legal) places to visit on this list, but my list of Oahu hidden gem list does not include places that require trespassing.

However, there are plenty of controversial but beautiful Oahu hikes (not on this list) that pass onto private land or have been closed to the public. Avoid those hikes, and respect local community and authority.

When swimming anywhere on Oahu, only wear reef-safe sunscreen, and avoid touching or standing on coral—it is a living organism that tourists are killing by contact!

Now, onto my favorite Oahu hidden gems:

1. Halona Beach Cove (From Here to Eternity Beach)

This small, picturesque cove is located right off the coastal highway and features a hidden lava tube that you can walk through!

Halona Beach Cove is right next to the Halona Blowhole, which is a popular 5-minute stop on island tours and road trips, but few visitors venture down to the stunning beach below.

A peek at Halona Beach Cove and the beach’s hidden lava tube!

It is also called From Here to Eternity Beach, or simply Eternity Beach, because it was featured in an iconic scene in the 1953 film From Here to Eternity. A few other Hollywood movies feature the beach too, including 50 First Dates and Pirates of the Caribbean: On Stranger Tides.

If you decide to visit Hanauma Bay (a very popular place for snorkeling) or the China Walls (later on this list!), you’ll find Halona Beach Cove just down the road.

2. The Mermaid’s Cave

Oahu’s majestic Mermaid Cave is probably the most unique yet controversial spot on this list.

This sea cave on Oahu’s leeward (western) side is so picturesque, with an opening in the ceiling where light shimmers on the turquoise water below. Depending on the tides and waves, you can swim in the water and explore the gorgeous grottos alongside sea turtles and other marine wildlife.

Some people choose to observe the cave from above, but if you’re a photographer and confident swimmer like me, you might choose to climb inside (only at low tide). The entrance cave can be difficult to find, though I do share detailed instructions on finding it in my full guide to the Mermaid Cave.

Swimming in Oahu’s Mermaid Cave really does make you feel like you’re in a mermaid movie!

The truth of the matter is, going into the cave can be dangerous, as it fills and empties with water based on the tides. You don’t want to get stuck in the cave, or swept out to sea — especially since the ocean here can be quite rough.

Locals who live on Oahu are tired of tourists overestimating their abilities and then having to be rescued by locals or emergency services. Rescues and even deaths can be a problem at places like the Mermaid Cave, so please only venture inside the cave if the tide is low and you are certain of your ability to safely get out.

Listen to guidance from locals, and never visit a dangerous place like this alone.

Also See: What to Wear in Hawaii: Outfit Ideas for All Islands and Seasons

3. The Mokulua Islands & Popoia Island

On our most recent trip to Oahu, my husband and I checked ‘kayak to an uninhabited island’ off our bucket list.

We rented a kayak through Kailua Beach Adventures and attempted the journey to two offshore islands, Moko Nui (one of the two Mokulua Islands), and Popoia (also called Flat Island).

We started with the .25 mile journey from Kailua Beach to Popoia and fell in love with the tiny island’s little beaches and fun tide pools. I can’t believe more people don’t visit this cute little island, it’s only a 10-15 minute kayak from the shore and it is so easy to rent a kayak with Kailua Beach Adventures!

Oahu’s iconic Mokes twin islands from Lanikai Beach

We didn’t end up kayaking all the way to Moko Nui, since it’s a 2.5 mile journey and we weren’t feeling up for doing it on our own. However, we’re hoping to go on one of Kailua Beach Adventures’ guided kayak trips to the Mokes in the future.

Their kayak trip includes a stop at iconic Lanikai Beach (my favorite Oahu beach), swimming in a lava tube at Queen’s Bath on Moko Nui, and plenty of opportunities to spot wildlife along the way. Plus, you don’t have to navigate the sometimes shallow waters and rip tides all by yourself!

4. Shark Freediving on Oahu’s North Shore

One of the most thrilling and adventurous things I’ve done on Oahu is freediving with sharks! My husband and I booked this tour on a whim and a few days later we were face-to-face with the ocean’s apex predator.

I’ve written all about our experience freediving with sharks in Hawaii, but here’s the quick version: We loved it and would absolutely do it again! And we actually felt quite at peace in the water with the sharks, partly because our awesome local guides went above and beyond to make our whole group feel safe (and get great photos!)

My husband swimming beside at Galapagos shark somewhere off Oahu’s North Shore

There are a few local companies that offer shark tours on the Oahu North Shore, but we chose to go on this shark tour, which has the highest rating from other travelers.

We had two guides in the water with us, plus a captain who stayed on the boat. The boat captain occasionally ran the motor to attract the sharks who associate the noise with chum (but this company does NOT chum the water for safety and environmental reasons). In the water, one of our guides held a shiny iridescent object on a long fishing line that he used to guide the sharks away from us, while the other guide took photos.

I share a lot more about my experience in my guide to shark diving on Oahu!

5. Mokulē‘ia Army Beach

We found this beach on our most recent Oahu trip and I was shocked by how beautiful—and empty—it was!

Mokulē‘ia Army Beach is one of the most beautiful beaches I’ve seen on Oahu, with white sand and views of lush green rolling hills rising over the turquoise water.

Just me daydreaming between the mountains and the ocean at Mokulē‘ia Army Beach

This lesser known beach on the North Shore of Oahu is near the end of a dead end road, along the western part of the North Shore where almost no tourists venture.

It is worth mentioning that it’s not the best beach for swimming, but it’s still a beautiful spot to stop on a day trip to the North Shore!

Also See: Where to Stay on Oahu’s North Shore

6. Kawainui Marsh Wildlife Sanctuary

If you read my guide on the best things to do in Kailua, you know that the unassuming 1.4-mile-long trail along the edge of the Kawainui Marsh Wildlife Sanctuary was one of my favorite local recommendations I got while house sitting in Oahu. The marsh is beautiful, as is the unobstructed view of towering lush mountains.

Walking on the town’s well-maintained, flat pathway through the marshland is definitely one of the most underrated things to do on Oahu. The walk is easy, close to the center of Kailua, and frequented by locals, yet very few tourists find this spot.

Dreamy sunset at the Kawainui Marsh in Kailua

I highly recommend checking out this trail during sunset, perhaps after a day of other adventures in lovely Kailua. Park at Kaha Park near the corner of Kaha St and Kaipii St. From there, you can walk the full length of the trial (1.4 miles) to Kailua Rd (Highway 61) and head back, or just walk part of it. Either way, you’ll be in for a treat!

7. Electric Beach

Electric Beach is probably Oahu’s most unique snorkeling spot. Located across the street from a power plant, this beach isn’t particularly appealing until you get in the water and swim several hundred feet out into the open ocean.

The nearby power plant releases warm water into the ocean here, which naturally attracts an abundance of marine life. The water is clear and around 30 feet deep, making it a lovely spot to freedive down (or scuba dive).

Surrounded by so many fish at Electric Beach!

Bring your own snorkel gear (there isn’t anywhere to rent or buy it within 20-30 minutes of here) and ideally some fins, and then go on the snorkeling adventure of a lifetime!

Since the best snorkeling is several hundred feet from the shore, you should be a strong swimmer, and you should always go with a friend. Thankfully, given the area’s increase in popularity, there are lifeguards at this small beach.

8. Swimming with Dolphins in the Wild

Most Hawaii travel guides will not mention that you can (ethically) swim with wild dolphins off of the coast of Oahu. But yes, you can!

I was fortunate enough to go on a similar dolphin watching tour in Mexico, and it was one of my most magical travel experiences ever.

This Oahu dolphin watching day trip leaves from Honolulu and includes a boat ride out to the West Coast line, where you encounter several pods of wild dolphins. The playful dolphins swim and jump beside your boat and after a briefing, you can jump in the water with them.

As with any other sea animals, you should keep a respectful distance and never touch them. Curious about this unique Oahu adventure? Check out the tour details and read reviews here.

9. Byodo-In Temple

Oahu’s Byodo In Temple is a striking replica of the a Buddhist temple in Kyoto, Japan. With sky-scraping verdant mountains set behind the temple, this place is picturesque, to say the least. And if you’re looking for a unique cultural experience in a peaceful setting, this is the place to go!

Take a mini trip to Japan at Oahu’s Japanese-style temple

I debated whether or not to add the Byodo In Temple of my list of secret spots on Oahu, because honestly, there is nothing secret about it. It is a popular tourist attraction, yet I hadn’t heard about it until my second trip of Oahu, so I thought I’d highlight it here.

I have a full guide to the Byodo In Temple with important details on what to wear if you want more information about this special place.

10. Makai Pier

One of my favorite lesser known snorkel spots on Oahu is the Makai Research Pier, which is located right off the road on the scenic drive between Hawaii Kai and Kailua. In my opinion, this is a must-do drive on any Oahu trip because of all the breathtaking spots to stop along the way (find them on my Oahu map!)

The pier itself is not what you want to visit (though it did appear in Jurassic World!), instead stop at the small beach directly north of the pier and bring your snorkel gear!

Makai Research Pier doesn’t look too interesting, but wait until you’re under the water!

In the water you’ll find unique coral formations and a diversity of tropical fish. If you’re lucky, you may run into some sea turtles as well!

But you probably won’t run into many other people since the beach and parking area are so small, and this place is still very much off the radar.

Also See: 7 Breathtaking Places on Oahu That Feel Like Jurassic Park

11. Kualoa Park

Kualoa Park is another underrated place I mention in my guide to Oahu Jurassic Park filming sites.

This public park is located across the street from Kualoa Ranch, a popular tourist destination where many famous movies have been filmed, including Jurassic Park, of course!

But Kualoa Park is free to visit and features the same beautiful mountain views, plus a sandy beach with a view of Mokoliʻi (Chinaman’s Hat), a cute offshore island.

You get beautiful views in every direction at Kualoa Park!

If you are a big fan of Jurassic Park, or simply love visiting movie filming sites, it might be worth going on a Jurassic Park tour at the nearby Kualoa Ranch. It is one of the most popular things to do on Oahu, and you can only see the iconic Jurassic Valley if you go on a tour.

Either way, be sure to stop by Kualoa Park as it is easy to miss but just across the street!

12. Kaʻena Point State Park

Spot sea lions and tide pools while walking beneath vibrant green mountains at this secluded state park on Oahu’s northwest corner.

You can access Kaena Point State Park from the western side of the island, or from the North Shore. Although the park is a short drive from heart of Oahu’s quintessential North Shore town, Haleiwa, very few people drive along the dead-end Farrington Highway to the park.

Hiking and wading in the water at Ka’ena Point State Park via the Farrington Highway

Although I’d been to Oahu’s North Shore a handful of times, it wasn’t until my most recent trip when I stayed on the North Shore that I ventured over to this side.

The 2.5 mile walk between the shoreline and mountains is now one of my favorite Oahu hikes, and I recently shared about it in my guide to the best short Oahu hikes. If you do the walk from the North side, be sure to keep your eyes peeled for sea lions and other wildlife, and consider bringing a bathing suit for a dip in the beautiful ocean!

13. Shark’s Cove

Say hello to my all-time favorite place to snorkel on Oahu, Shark’s Cove!

This unique cove on Oahu’s North Shore has a large shallow area where you snorkel through maze-like rock formations, as well as a deeper section where you’ll find interesting rock formations, including little caves and tunnels that you can swim through.

And while you’re not likely to see sharks (despite the name), I have seen a wide range of tropical fish here, as well as sea turtles and octopus!

Shark’s Cove from above — it’s way more interesting when you’re the water surrounded by fish, octopus, and turtles!

The majority of the cove is surrounded by rock formations that protect snorkelers from the waves and make it an easy to place to snorkel in the summer months. However, the surf on the North Shore are too rough for snorkeling in the wintertime.

I will admit, Shark’s Cove can be quite a busy stop, but I still wanted to include it on this article because it’s also easy to miss the deeper part of Shark’s Cove that’s great for freediving and scuba diving.

Also See: My Favorite Oahu Helicopter Tour

14. Hoʻomaluhia Botanical Garden

This free-to-visit botanical garden on Oahu’s windward side has significantly grown in popularity due to social media. And for good reason! The garden’s mountainous backdrop makes you feel like you’re in Jurassic Park, and the garden’s 400-acres are filled with lush foliage from Hawaii and many other tropical destinations around the world.

Hoʻomaluhia Botanical Garden has some of the best views on Oahu!

You can walk, hike, and explore tropical flora and fauna from Hawaii and several other tropical regions, or just gaze up at those breathtaking mountains! There is also a beautiful pond, which is a perfect spot for a picnic.

That said, it can be difficult to find spots with a view of the mountains. It wasn’t until my third trip to Oahu that I found the spot where I took the photo above since Hoʻomaluhia Botanical Garden is a little confusing to navigate. My favorite spots in Hoʻomaluhia Botanical Garden are pinned on my Oahu map if you want to find them more easily.

15. Wahiawā Botanical Garden

Wahaiwa Botanical Garden is another free botanical garden on Oahu, but it’s quite different than Hoʻomaluhia. You don’t get any mountain views, but the dense tropical foliage that encapsulates you makes up for that.

The garden is located in Wahaiwa, a town in the middle of Oahu that you pass if you’re driving between the North Shore and Honolulu. Most people just drive past Wahaiwa, assuming there is nothing to do in the middle of the island, but this gorgeous garden begs to differ!

There is so much to explore at Wahaiwa’s Botanical Garden!

I made the mistake of wearing a dress and some beautiful (but slightly uncomfortable) flip flops here. What I thought was going to be an easy walk turned into more of a hike as we journeyed through thick foliage, up and down pathways, and through less maintained parts of the garden.

Besides good walking shoes, I highly recommend wearing (or bringing) bug spray. I got a lot of itchy bug bites!

16. Nuʻuanu Pali Lookout

The first time I visited Hawaii, I was on a service learning trip in college. We spent most of our time volunteering and exploring local spots, and the Nuʻuanu Pali Lookout was a quick stop on a drive across the island that left me breathless.

You’re perched high among the Koʻolau mountains, overlooking the rest of the lush mountain range, the Pacific Ocean, Kailua, and Kaneohe. This is the type of view you usually only get on a hike, but all you have to do is park (and pay the parking fee).

This lookout is beautiful but be prepared to pay for parking!

The lookout is right off of the Pali Highway (Hawaii Route 61), which is one of two highways connecting Kailua and Honolulu. If you end up driving the Pali Highway, don’t miss the viewpoint! I have it pinned on my free Oahu map, so you can easily save it to your Google Maps.

17. Puaʻena Point Beach Park

Puaʻena Point Beach Park is the first place I ever surfed! We spend an afternoon at this cute little North Shore cove on my first trip to Oahu, and I’ve returned on every single Oahu trip since.

On my most recent visit, we saw so many sea turtles swimming in the cove here, and one even landed on the beach right next to where I was sitting. If that happens to you here or anywhere else in Hawaii, be sure to give the turtle at least 10 feet of space.

Puaʻena Point Beach Park is very much a local spot on Oahu’s North Shore!

The cove is quite small, but the trees and bushes along the shore create natural shade. It’s also a great place to snorkel or learn to surf, depending on the conditions. In fact, you can book surfing lessons here ahead of time.

18. China Walls

Rugged volcanic cliff sides and the roaring Pacific Ocean meet, making one of Oahu’s best cliff jumping spots. China Walls technically refers to the surf break right near the sea cliffs, but most people associate the volcanic rock formations with the name.

China Walls is a popular spot to cliff jump or watch the sunset, but it can be quite dangerous. Ocean rescues are common here because it is difficult to get out of the water, and powerful swells can come unexpectedly. You also have to be careful when standing on the rocks because the waves can sweep you in, bashing you on the rocks along the way.

Be careful at China Walls, I saw people get some nasty cuts after being swept into the ocean and hit on the rocks!

Even still, I loved swimming here and would definitely visit again. I recommend checking out my guide to Oahu’s China Walls to get a better idea of how to stay safe here.

If you’re in the area, look into hiking Koko Head too, it’s one of my favorite shorter hikes on Oahu and is just a few minutes away. I recommend hiking Koko Head for sunset!

19. Kailua Farmers Market

We’re getting into the part of the article where I’m sharing my favorite food-centered experiences on Oahu!

I’ve been to a handful of Oahu farmer’s markets, and this one is by far my favorite. Kailua’s lively Sunday market happens each weekend at 640 Ulukahiki St.

Although there are several farmers markets in Kailua, this one stands out with a diversity of food and non-food vendors, fresh local produce, stunning mountain views, and a local vibe.

Locals and tourists enjoying Kailua’s Sunday farmers market with mountains peeking out in the background!

Since this Sunday market is such a fun thing to do in Oahu, I recommend visiting Kailua on a Sunday. There are plenty of other things to do in Kailua, a few of my favorites include hiking the Lanikai Pillbox trail at sunrise, sunbathing and snorkeling at Lanikai Beach, kayaking to Flat Island, and walking along the Kawainui Marsh Wildlife Sanctuary (earlier in this article).

20. Fujiya Hawaii

If you’ve never tried mochi, now is your chance! This soft, chewy, sweet Japanese treat made from rice is quite popular in Hawaii, and you can find some of the best mochi at Fujiya in Honolulu. In fact, my Japanese friend told me the mochi here is the best she’s ever had.

Fujiya has dozens of flavors of mochi, ranging from chocolate and peanut butter to passion fruit and mango. You can also get mochis stuffed with delicious fillings like traditional Japanese red bean filling, or my personal favorite, mochi stuffed with a giant red ripe strawberry!

21. Ko Hana Distillers

Visit Oahu’s first and only rum tasting room to learn about how sweet sugarcane is transformed from from an infamous plant to Captain Jack Sparrow’s favorite drink.

If you sign up for Ko Hana’s rum tour, you’ll get to taste fresh sugarcane juice, see several types of sugarcane plant, tour the barrel rooms and distillery, and of course taste Ko Hana’s incredible rum.

The barrel room at Ko Hana in Central Oahu

Ko Hana Distilleries is located halfway between the North Shore and Honolulu, so it is a great place to visit on your way between the two. If you’re thinking about taking a day trip to the North Shore, be sure to check out my Oahu North Shore itinerary.

Be sure to book your rum tour ahead of time. Although this is one of the hidden gems of Oahu, space is limited for tours and Ko Hana is growing in popularity.

22. Island Brew Coffeehouse

I’ll take my iced lavender latte with a view, please! Island Brew Coffee in Honolulu’s Hawaii Kai neighborhood is a must-visit spot if you’re on the southeastern part of the island.

I can’t get over the views at this Hawaii Kai coffeeshop!

This charming little coffeeshop features an abundance of seating right on the gatorade-blue water, with the perfect view of the Koko Head crater (which is one of my favorite Oahu hikes!)

23. Haleʻiwa Bowls

I didn’t realize acai bowls could taste so good until I tried this North Shore acai joint’s Mana Bowl, which features perfectly thick, creamy acai, delicious granola, fresh fruit, and peanut butter (which I added).

Since then, I’ve tried plenty of other acai bowls across Hawaii, and the only acai bowl that has come close to Hale’iwa Bowls is Kalalea Juice Hale on Kauai.

The mana bowl (plus peanut butter) at Hale’iwa Bowls in Haleiwa, Oahu

Haleʻiwa Bowls’ menu features a diversity of acai bowls, as well as other smoothie bowls, smoothies, and coffee. It is located right by the Haleiwa marina and it is a great place to fuel up after an early morning surf, shark diving, or a day at the beach.

24. Manoa Chocolate Factory

I’m lucky to have a good friend who grew up on Oahu and she always gives me the best recommendations anytime I’m heading to Hawaii. One place she sent me to is Manoa Chocolate Factory in Kailua, where you can do a free chocolate tasting!

I’m a bit of a chocolate snob so I couldn’t resist! Manoa Chocolate makes chocolate from both local cacao, and other cacaos grown in different parts of the world. They have bars infused with tropical flavors like passionfruit, guava, and even banana!

Since the chocolate tasting is free, you really have nothing to lose, but be ready to want to buy a few bars to bring home! This is also a great rainy day activity, or something to do if you need a break from the hot Hawaiian sun.

Also See: Hawaii Packing List for Women

25. Lanikai Brewing Co.

Last but not least, Lanikai Brewing Co! This vibrant local brewery in Kailua brews “Island Inspired” beer. Beer drinkers will love this place, and anyone who isn’t a big fan of beer (like me) will find plenty of other options on their menu.

Mai Tai and Lager beer at Lanikai Brewing in Kailua, Oahu

I love going here because they make their beer with mostly Hawaiian ingredients rather than importing, and the locals certainly outnumber the tourists. If you’re not a big beer drinker, I recommend Lanikai Brewing’s Mai Tai, which of course is a drink created in Hawaii!