15 Best Hikes on Oahu for Amazing Ocean Views

When it comes to outdoor adventure, Oahu packs a punch. Within the island's 597 square miles, visitors can find stunning beaches to unwind on, delicious local foods to enjoy, and miles upon miles of hiking trails to explore. We've rounded up some of the best hikes on Oahu so you can soak in the scenery while trekking around the island.

According to Best of Oahu, there are close to 50 different hiking trails to choose from around the island. From beginner-friendly to more challenging routes, the island's trails have it all. There's the high-stakes scramble on the Mount Olomana Ridge Trail or the cinematic, rainforest surroundings of the Mānoa Falls Trail. The one thing they all have in common, though, are the spectacular views of Oahu and the Pacific Ocean they highlight.

Here are some of the most distinct Oahu hiking trails every traveler should check out on their next jaunt to this stunning island.

1. Diamond Head Summit Trail 

Located on the eastern side of Waikiki's coastline sits the crateral Diamond Head State Monument, one of the island's most famous landmarks. The monument, which takes up a whopping 475 acres of land, has plenty for visitors to see and do, including a hike to the top. The summit trail, first built in 1908, is just 0.8 miles long. Though short, it's still difficult — on that quick walk you'll gain 560 feet of elevation — but the view is well worth the huffing and puffing.

2. Waimea Valley Trail

The hike to Waimea Falls is more of a leisurely stroll than a workout, but it's stunning just the same. Upon entering the park, visitors can take a paved road on a 1.9-mile walk through a gorgeous botanical garden. At the end, you will be rewarded with a glimmering lake and waterfall. Those adventurous enough can even hop in for a swim before hiking back out again.

3. Koko Crater Tramway Trail

Located just a short drive from Waikiki, the Koko Crater Tramway hike is popular with adventure lovers. The path up is a 1.6-mile track that you'll want to take slowly. That's because it's filled with stunning flora on all sides. At the top, you can also visit the Koko Crater Botanical Garden for even more greenery and panoramic views.

4. Lanikai Pillbox Hike

For the best views of the surrounding ocean, head up the Lanikai Pillbox Hike. The trail is a quick out and back, clocking in at just under two miles. However, like other hikes on the list, the elevation gains can be intense. The hike should take about 30 minutes to get to the top pillbox (you can venture another 10 minutes to reach the ridge's highest point) and once there, you will want to stay awhile to take it all in. While the hike can be family-friendly, remember to wear proper shoes as it can be slippery in some locations.

5. Makapu'u Point Lighthouse Trail

The Makapu'u Point trail once again offers visitors stellar views of the island's coastline. And at just 2.5 miles round trip, it's an easy trail for almost anyone to complete. On the trail, you will also catch a glimpse of the red-roofed Makapu'u Lighthouse. The path is paved the entire route and there is little to no shade available along the way. Make sure to wear sunscreen, a hat, and pack plenty of water, even for the quick journey.

6. Waimano Falls Trail

Though the Waimano Falls Trail is beautiful and accessible year-round, it may be best to visit after it rains. That is when the pools are full and the waterfall is flowing. You can jump in using the big ropes available at multiple points of entry. The hike, located near Pearl City, is 2.9 miles out and back. AllTrails rates it as "hard," so be sure to take your time, wear the right shoes, and pack plenty of water for this one, too.

7. Pu'u Piei Trail

Looking for an expert-level trail to try? Check out the Pu'u Piei Trail, but only if you're truly ready. The trail is a mere 2.4 miles, but it could take over two hours to complete due to its intense incline and overgrown brush. If you go, stay on the ridge and on the trail. Though the summit is mostly covered in the trees, you'll still be able to sneak a peek at the lovely view below.

8. Ma'ili Pillbox Puu O Hulu Trail

This popular, 1.6-mile out-and-back trail takes you to the top of the Pu'U'Ohulu ridge for gorgeous oceanside views of Nānākuli and Waianae. The moderately challenging hike is known for its double “camel's humps” and the bright pink pillbox (or, military bunker) at the summit.   

9. Mānoa Falls Trail

Head to Honolulu’s Mānoa Valley for cinematic views — literally. You’ll see locations from "Jurassic Park" and Lost as you make your way down this 1.7-mile out-and-back trail through a tropical rainforest. Your journey ends at the base of a 150-foot waterfall. Check the weather before leaving and wear close-toed shoes so you’re not struggling in the mud.   

10. Ka'ena Point Trail 

Want an easy hike through a state park that ends in natural swimming pools? This 6.1-mile out-and-back trail is sunny and gentle. As you’re walking, pick a cove and head down to the water (where you might spot a seal or two!), minding the rocks where the waves break. Cool off in the surf before heading back to the trail, which takes you through rugged natural landscape past gorgeous coastal views.   

11. Mount Olomana Ridge Trail

Hikers beware! This trail, which has led to fatalities in the past, should only be attempted under the best weather conditions by outdoor experts. But, if you’re a skilled climber looking for a challenge, this hike takes you up a mountain by rope hand lines. Those who make it to the top are rewarded with sweeping views from three different peaks.        

12. Kuli'ou'ou Ridge Hike

There’s no such thing as too many gorgeous views, right? Because you’ll find even more at the top of this 4.7-mile out-and-back trail near Honolulu. Ascend 1,800 feet for just over three hours and be greeted by the green peaks and bright blues of a typical Hawaiian vista of the Kuli'ou'ou Ridge.    

13. Mount Olympus Awaawaloa

This challenging ridge hike takes you over wild, unmaintained sections, rock scrambles, and up-and-down ridges. You’ll definitely work up a sweat, but it’s perfectly safe for the average hiker. The summit yields views of Mānoa Valley and Palolo Valley. You can continue on to the Kolowalu trail, which goes down into Mānoa Valley, or head back to the trailhead in the Wa'ahila Ridge State Recreation Area on the 5.9-mile out-and-back trail.  

14. Mount Ka'ala Trail 

Ascend 5,000 feet on this 7.1-mile out-and-back trail for a more challenging hike that includes a rope section. Your efforts will pay off when you reach the highest point on Oahu where you’ll catch glimpses of Waianae Valley, the coast, and the North Shore.

15. Hanauma Bay Ridge Trail

Get a good look at the spectrum of blue found in Hanauma Bay at the end of this paved, uphill 0.8-mile out-and-back route. Stop for some pictures at the top of the ridge before descending a dirt trail to a secret beach with a natural rock bridge. Be sure to wear proper footwear and bring sunscreen for the sunny, uncovered hike.