Oahu, Hawaii is a stunning place with so many amazing hikes to choose from. It’s the busiest Hawaiian island, but that doesn’t mean you can’t escape the crowds and enjoy nature. Hiking is one of the best ways to do that.

If you ever spent a lot of time exploring Oahu, and You must be truly believe that hiking is a fantastic way to experience this island. There are hikes for all levels, from easy ones for families to challenging ones for the more experienced hikers. Some are even close to Honolulu.

So, let’s dive into a list of the best hikes in Oahu, Hawaii.

Best Hikes in Oahu, Hawaii

1. Stairway To Heaven (Haiku Stairs)

This hike is incredible, but it’s important to note that it’s also illegal and risky. Still curious? The Stairway to Heaven trail takes you up the Ko’olau mountains using 3,922 metal stairs that can be really steep in places. There’s an old World War II radio station at the top, but the stairs have been off-limits since the 1980s, and you can face hefty fines if you’re caught using them. Security guards patrol the area.

However, every year, many people brave the climb because it’s one of the most amazing hikes in the world. The views are absolutely breathtaking, and the whole adventure is unique and incredible.

After traveling to many countries, this will become your favorite hike. It’s hard to top!

• Distance: 2.3 miles roundtrip
• Elevation Gain: 2,625 feet
• Difficulty: Challenging

2. Moanalua Valley Trail

If you’re interested in seeing the ‘Stairway To Heaven’ without breaking any laws or risking fines, you can take the Moanalua Valley Trail, which is on the opposite side of the same mountain. This trail is often called the “back way” to the ‘Stairway To Heaven.’

The Moanalua Valley Trail is a challenging dirt path with steep sections and ropes to help you along, but it doesn’t have the metal stairs you’ll find on the Stairway To Heaven. You can hike up this trail to reach the top where the Stairway To Heaven begins and then choose to go back down in either direction when you’re done.

However, to stay completely legal, you’ll need to return the way you came. If you hike up the Moanalua trail and descend the stairs, you’re still at risk of facing fines because the stairway is off-limits. But, there’s a neat trick you can use to enjoy both hikes in one trip. You can take great photos on the stairs and then leave via the Moanalua trail without walking the entire length of the stairway.

Keep in mind that the Moanalua trail can get muddy after rain, so it’s a good idea to check the weather conditions before you head out. You’ll want to go on a day with good weather, as strong winds and rain can make the hike more challenging and risky.

Interestingly, some hikers find the stairs to be a safer and easier way to reach the mountaintop. The primary reason to take the back way is to stay on the right side of the law and avoid potential fines.

• Distance: 9 miles roundtrip
• Elevation Gain: 2,800 feet
• Difficulty: Challenging

3. Crouching Lion Hike

Crouching Lion is a personal favorite of mine among the Oahu hikes. It’s a relatively short yet amazing trail that leads to a breathtaking panoramic view of the mountains and jungle at Kahana Bay, in the northeast of Oahu.

You can choose to stop and enjoy the vista after a relatively easy hike, or if you’re feeling more adventurous, continue your journey up the mountain. As you go higher, the trail will eventually merge with Pu’u Manamana, known as one of Hawaii’s most intimidating and perilous cliffside trails.

In a nutshell, Crouching Lion is unquestionably one of the best hikes you can experience in Oahu.

• Distance: 0.5 miles roundtrip
• Elevation Gain: 300 feet
• Difficulty: Easy to Moderate

4. Lanikai Pillbox Hike

The Lanikai Pillbox Hike is one of the easiest and most popular hikes on the windward side of Oahu. This short but delightful trail takes you to a pair of concrete bunkers dating back to World War II, perched above the stunning Lanikai Beach. The panoramic views from the top of these bunkers are absolutely breathtaking.

Although it’s a short hike, taking about 15 minutes if you’re in a hurry, it’s all uphill and can be a bit strenuous, making it still quite a satisfying challenge. And, here’s a special bonus – the Lanikai pillbox is known as one of the finest spots to catch the sunrise and sunset on the entire island!

• Distance: 1 mile roundtrip
• Elevation Gain: 450 feet
• Difficulty: Easy

5. Ho’omaluhia Botanical Garden

While not a traditional hike, a visit to the Ho’omaluhia Botanical Garden is like taking a leisurely walk along a path that encircles a beautiful lake. This garden is not just one of Oahu’s most captivating places; it’s also free to explore, making it a must-see destination. This stroll is perfect for families or those looking for a relaxed outdoor experience.

The Ho’omaluhia Botanical Garden boasts over 400 acres of tropical landscapes reminiscent of scenes from Jurassic Park. It’s an ideal spot for a peaceful morning walk or a refreshing jog. The lake’s mirror-like surface creates stunning reflections, especially in the early morning.

• Distance: 1 mile roundtrip
• Elevation Gain: 100 feet
• Difficulty: Easy

6. Chinaman’s Hat (Mokolii Island)

Chinaman’s Hat, also known as Mokolii Island, is a charming, petite island with a name that originates from its distinctive resemblance to a traditional Asian rice farming hat.

Situated on the windward side of Oahu, the best way to reach this island is by kayak. Sometimes, during low tide, it’s even possible to wade over to it.

While it may not always make it to the top of lists featuring the best Oahu hiking trails, the ascent to the summit of the ‘hat’ involves a satisfying and slightly challenging rock scramble. Your reward at the top is a set of incredible views of the Ko’olau mountain range!

• Distance: Not applicable (varies depending on access method)
• Elevation Gain: 200 feet
• Difficulty: Moderate

7. Diamond Head Lookout

The Diamond Head hike is a well-paved trail with sturdy railings for most of the way, leading you to the summit of the old Diamond Head volcano crater.

Once at the top, you’ll enjoy stunning panoramic views over Waikiki and the entire Honolulu cityscape. Additionally, you’ll encounter the remnants of World War II pillboxes.

This trail can get quite crowded with tourists at times, but I still believe it’s worth it for the incredible city views you’ll experience from the summit.

• Distance: 1.8 miles roundtrip
• Elevation Gain: 500 feet
• Difficulty: Easy

8. Upper Makua Cave

The quick and steep journey to Upper Makua Cave is definitely not for those with a fear of heights. This adventure is bound to get your heart racing!

Tucked away on the west side of the island, Upper Makua Cave is a hidden gem. During my visit, I only encountered a few other people on the trail.

Once inside the cave, the view resembles a natural picture frame showcasing the beauty of the west coast. It’s a truly unique and breathtaking perspective.

• Distance: 0.6 miles roundtrip
• Elevation Gain: 425 feet
• Difficulty: Easy

9. Hanauma Bay Ridge Trail

The Hanauma Bay Ridge Trail is a short, paved hike that offers breathtaking views of the iconic Hanauma Bay, known as one of Oahu’s most renowned snorkeling destinations. The hike’s length can be tailored to your preferences.

Most hikers choose to follow the trail to the top of the ridge and then return, but if you venture further south along the bay, you can discover a natural rock bridge by the sea and other intriguing sights.

Mornings are the ideal time to embark on the Hanauma Bay Ridge Trail. The lighting is perfect for photos, and it’s not as hot as later in the day. You can access the trail from a locked gate right at the entrance to Hanauma Bay.

• Distance: 1.5 miles roundtrip
• Elevation Gain: 500 feet
• Difficulty: Easy

10. Mauna Lahilahi

Mauna Lahilahi is a small, rocky mountain located along the picturesque Makaha coast, with beautiful beaches on both sides.

This hike is a bit of a hidden gem on Oahu’s west side. You can reach the summit in just 15 minutes, but it involves some short rock scrambling, which might be a bit nerve-wracking for less-experienced hikers. So, be cautious if you decide to give it a go.

At the top, you’ll be rewarded with incredible 360-degree views of the Makaha coastline, with Papaoneone Beach and the Hawaiian Princess Resort dominating the landscape.

• Distance: 0.5 miles roundtrip
• Elevation Gain: 200 feet
• Difficulty: Easy to Moderate

11. Koko Head Stairs

The Koko Head hike is like Hawaii’s own version of the famous and tough Manitou Incline in Colorado. Climbing to the top of this ancient volcano crater is a major workout, earning it the nickname ‘Stairs of Doom.’

While the elevation on this hike isn’t as extreme as the Manitou Incline, the midday heat and humidity in Hawaii can make it quite demanding. It’s not a dangerous hike, and there haven’t been any accidents involving falls, but it’s a true fitness challenge and might not be everyone’s idea of fun.

I’ve hiked the Koko Crater trail numerous times over the years, and it’s always an exciting adventure. I didn’t enjoy this hike the first time I tackled it, but it has grown on me, and now I really appreciate it. It definitely deserves a spot on the list of the best hikes in Oahu!

The great news is that it’s also one of the best spots on the entire island to witness a stunning sunset or sunrise. I’ve climbed Koko Head for sunset nearly a dozen times, and the view from the top is always breathtaking.

• Distance: 1.6 miles roundtrip
• Elevation Gain: 900 feet
• Difficulty: Moderate to Hard

12. Koko Arch

Koko Arch is a short and straightforward hike that takes you to a natural rock arch located on the southern slope of Koko Head crater.

This massive arch is a fantastic spot to catch the sunrise as well. The main trailhead begins near the road at the Halona Beach Lookout, and it’s just half a mile to the arch, so you can reach it in less than 10 minutes.

If you’re up for a more extended and challenging hike, you can ascend the arch, continue along the southern Koko Crater rim to reach the top of Koko Head, and then descend via the Koko Stairs (or reverse the route for a different adventure).

• Distance: 1 mile roundtrip
• Elevation Gain: 350 feet
• Difficulty: Easy

13. Makapu’u Lighthouse Trail

The Makapu’u Lighthouse Trail is a wonderful hike suitable for families, offering you the chance to see a lighthouse, a couple of World War II pillboxes, and if you’re lucky, humpback whales! The best time to spot these majestic creatures here is between November and May.

Situated on the southeastern corner of Oahu, this trail provides one of the island’s most picturesque lighthouse views. That’s why I consider it one of Oahu’s finest hikes.

Although the trail is entirely paved, it involves a bit of an uphill walk, and the path is completely exposed to the sun. Be sure to bring a hat and some sunscreen for this one.

• Distance: 2.5 miles roundtrip
• Elevation Gain: 500 feet
• Difficulty: Easy to Moderate

14. Manoa Falls

Manoa Falls is a magnificent 150-foot waterfall that can be reached via a short and easy trail through the lush jungle. For even more tropical beauty, consider combining your visit with a trip to the nearby Lyon Arboretum!

Situated near Honolulu, Manoa Falls is suitable for people of all ages, although the trail can be a bit rocky and may get muddy after rainfall, so make sure to wear appropriate footwear.

Keep in mind that this waterfall is on the leeward side of Oahu, making it somewhat seasonal and prone to drying up quickly. It’s a good idea to check the conditions before you plan your visit.

The best time to experience Manoa Falls in all its glory is after heavy rain or during the wetter months (November to March). Otherwise, you might find it disappointing as a mere trickle.

• Distance: 1.7 miles roundtrip
• Elevation Gain: 500 feet
• Difficulty: Easy

15. Pali Puka

Pali Puka is a brief but exhilarating hike that kicks off at the Pali Lookout and leads to a ‘puka’ (a natural window in the rock) with stunning views of Oahu’s entire windward side.

This hike is a lot of fun, but it falls into the moderate category due to its uphill trek, tricky tree roots, and occasional steep drop-offs. While it’s not overly perilous because you can navigate around the cliff sections by going through the forest, it may not be the best choice for individuals with mobility challenges or a fear of heights.

Similar to many hikes in Oahu, this one is not officially sanctioned. You can start your journey from the bus parking lot at the Pali Lookout, although the trailhead might be a bit challenging to spot if there are many tour buses around. Keep an eye out for a small clearing in the jungle with a caution sign.

• Distance: 0.7 miles roundtrip
• Elevation Gain: 500 feet
• Difficulty: Moderate

16. Olomana (Three Peaks)

The Three Peaks hike, also known as Olomana, stands out as one of the most demanding hikes in Oahu, Hawaii. In fact, it’s quite possibly the most treacherous mainstream hike on the island.

Unfortunately, a significant number of both tourists and locals have lost their lives on the second and third peaks, with incidents occurring as recently as 2023. While I don’t intend to discourage you from attempting Olomana if you’re up to the challenge, it’s crucial to be fully aware of the risks. This hike is not to be taken lightly.

To make the hike safer and more manageable, you can opt to ascend only to the first or second peak before returning. The general consensus is that the most breathtaking views can be found on these two peaks. However, even if you plan to go only as far as the first peak, be prepared for a section that involves a bit of rock climbing and can be rather intimidating. I would still advise against it if you’re not comfortable with heights.

The third peak of Olomana is where the primary danger lies. There are parts where you’ll be navigating vertically with your hands on exposed terrain (or with ropes) where a fall could be both lengthy and lethal.

When embarking on this hike, remember to bring water and a companion. Weather conditions are also crucial. It can be especially hazardous when the trail is wet or rainy, so always keep a close watch on the current weather before you set out.

If you decide to hike only to the first peak, you can complete the journey in approximately 3 hours roundtrip. However, if you plan to reach the third peak and return, be prepared for a longer and more demanding trek.

• Distance: 4.5 miles roundtrip
• Elevation Gain: 1,850 feet
• Difficulty: Hard

In Summary

Oahu, Hawaii, offers an array of hiking adventures, each with its own unique character and appeal. From the adrenaline-inducing ‘Stairway to Heaven’ to family-friendly jaunts like the Manoa Falls, the island has something for everyone. You can explore natural arches, rocky peaks, lush jungles, and even World War II relics, all within its captivating landscape.

However, with the allure of these trails also comes the importance of safety and respecting the environment. While some hikes are moderate and straightforward, others, like Olomana, demand courage and careful preparation due to their risks. Whether you’re a seasoned hiker or a novice, understanding the terrain and current weather conditions is vital.

From tranquil botanical gardens to treacherous ridges, Oahu’s hiking diversity ensures you’ll find an experience that suits your preferences and capabilities. So, put on your hiking shoes, pack your water, and set out to discover the natural wonders of this breathtaking island.