The best walks and hikes in Honolulu Forest Reserve
4.6
(365)
5,029
hikers
111
hikes
Hiking in Honolulu Watershed Forest Reserve offers routes through the lush, mountainous terrain located behind the city of Honolulu. The landscape is characterized by steep ridges, deep valleys, and a dense tropical rainforest canopy. Many trails follow streams through groves of eucalyptus and native koa trees, providing a network of paths with varied elevation.
Best hiking trails in Honolulu Forest Reserve
- The most popular hiking route is Moanalua Ridge Trail – Kamananui Valley Trail loop from Moanalua Valley, a 10.2 mile (16.3 km) trail that takes around 5 hours 35 minutes to complete. This is a difficult route with significant elevation gain along a prominent ridge.
- Another top favourite among local hiking enthusiasts is Tripler Ridge Trail to Kahoʻomoeʻihikapulani — Oʻahu, a moderate 8.6 mile (13.8 km) path. The trail involves a steady climb and offers views from the ridgeline.
- Local hiking enthusiasts also love the Kamananui Valley Trail loop from Tripler Army Medical Center, a 2.3 mile (3.7 km) trail leading through the valley floor, often completed in about 1 hour.
- Hiking in Honolulu Forest Reserve is defined by shaded rainforest paths, steep ridgelines, and stream crossings. The trail system includes everything from easy valley floor walks to challenging ridge hikes.
- The routes in Honolulu Forest Reserve are highly rated by the komoot community with an average score of 4.6 stars from over 380 reviews. More than 5,000 hikers have used komoot to explore Honolulu Forest Reserve's varied terrain.
Last updated: July 7, 2026
3
hikers
13.8km
04:50
720m
720m
Hike the moderate 8.6-mile Tripler Ridge Trail in Honolulu, gaining 2360 feet with panoramic views from the summit.
4.9
(24)
200
hikers
The Moanalua Ridge Trail – Kamananui Valley Trail loop offers a dramatic shift in scenery and challenge on O'ahu. You'll start with a peaceful walk through the lush Kamananui Valley, following an old carriage road past historical sites and stream crossings. As you ascend the Moanalua Middle Ridge, the terrain transforms into a steep, narrow ridgeline with exposed tree roots and potential for very muddy conditions, rewarding your effort with increasingly expansive valley views and eventually panoramic vistas from the Ko'olau Summit Trail.
This difficult 10.2-mile (16.3 km) hike involves a significant 2498 feet (761 metres) of elevation gain and typically takes around 5 hours and 35 minutes to complete. Starting early is crucial due to the trail's length and demanding nature, especially the exposed and potentially slippery ridge sections. Accessing the route from Tripler Army Medical Center provides a convenient starting point for those with base access.
What makes this loop particularly notable is its status as a primary legal route to reach the summit overlooking the famous Haiku Stairs, offering a unique perspective on the iconic 'Stairway to Heaven'. The combination of historical valley exploration and the intense physical challenge of the ridge makes it a truly unforgettable experience for well-prepared hikers seeking one of the best loop trails near Tripler Army Medical Center.
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15
hikers
3.67km
01:01
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
3.3
(3)
41
hikers
The Lake Waimaluhia – Stream Trail loop from Ho'omaluhia Botanical Garden offers a truly tranquil hiking experience, blending serene lakeside paths with a more rustic, jungle-like stream section. You'll enjoy continuous, iconic views of the Koʻolau Mountain Range reflecting in Lake Waimaluhia, surrounded by lush tropical flora. This easy 2.7-mile (4.3 km) loop involves just 246 feet (75 metres) of elevation gain and takes about 1 hour and 11 minutes, making it a perfect choice for a relaxed outing.
When planning your visit, be prepared for potentially muddy conditions, especially on the Stream Trail, as this area is a rainforest. Closed shoes are a must, particularly after rain, which is common. The tranquil atmosphere and diverse botanical displays make it a rewarding experience for those seeking natural beauty without a strenuous climb.
This trail is notable for its accessibility and the stunning natural oasis it provides within the Ho'omaluhia Botanical Garden. The lake itself, Loko Waimaluhia, was designed in the 1970s as a flood protection basin, adding a layer of historical significance to its beauty. It's a fantastic option for family friendly hikes, offering chances to observe various birds and vibrant koi.
4.6
(34)
357
hikers
7.31km
02:09
220m
220m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Tips from the Community
This unpaved "road" — really, just a nice walking trail — used to be an access point for the Moanalua Ridge Trail, a route up to the "backside" of the Haiku Stairs. That route is now closed and people who've tried to sneak through have gotten tickets, so it's better not to risk it. The early part of the road is interesting in and of itself, though, thanks to interpretive signs that point out natural history and relics.
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Right about here you'll see a side trail on your left. This is the access route for Kalauao Falls, but be warned that the 'Aeia Ridge and Loop trails generally make a much nicer — and less muddy — adventure.
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This viewpoint gives you great views of the ruggedly beautiful Halawa Valley to your south. The road running through it is Hawaii's H3 interstate highway. Yes, you read that correctly—it's technically considered an interstate, even though it only traverses the one island. If conditions allow you can even see all the way to the city of Honolulu, also to your south.
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This is one of many points along the 'Aiea Ridge Trail (which transects the 'Aiea Loop) that give a great viewpoint over Pearl Harbor. It's an evocative place, where you can easily imagine what it might have been like to witness the Japanese attack on the harbor that triggered the United States' entrance into World War II.
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On this point of the trail you are on the top of a cliff with the Halawa Valley and the highway below. The highway adds a certain element to the view by providing a reference point to show just how big the valley actually is.
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Pa Launa is the main area of the Hoʻomaluhia Botanical Garden and is located right next to the Visitor Center and its parking lot. Take a stroll through beautiful plants and educate yourself about the local flora and fauna at the information plaques.
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Once you reach the peak of Kahoʻomoeʻihikapulani at almost 2,700 feet, you will forget about the struggles along the hike. Enjoy the views to both sides of the island and give yourself a long break before you hike back. You deserve it!
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Please be aware, that the hike along Tripler Ridge Trail is very challenging, partly overgrown and includes many exposed sections. But if you're in good shape and up for an adventure, this is the perfect hike for you, and you will certainly be rewarded!
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Frequently Asked Questions
Are dogs allowed on the trails in the Honolulu Watershed Forest Reserve?
Dogs are generally required to be on a leash in Hawaiʻi's Forest Reserves to protect the native ecosystem and wildlife. However, regulations can vary by specific trail and management area. It's always best to check the latest official guidelines from the Division of Forestry and Wildlife before you go. You can find more information on protected species in the area on the official state ecosystems website.
Are there any easy, family-friendly hikes in the reserve?
Yes, the area offers several options suitable for families. A great choice is the Kamananui Valley Trail loop from Tripler Army Medical Center. It's a relatively short and flat walk along the valley floor, making it accessible for hikers of most ages and abilities. The path is often shaded and follows a stream, providing a pleasant rainforest experience.
Can I see any waterfalls while hiking in the reserve?
While many trails follow streams, the most famous waterfall, Mānoa Falls, is on an adjacent trail. You can connect to the Mānoa Falls area from within the reserve via the ʻAihualama Trail. This allows you to combine a forest hike with a visit to the spectacular 150-foot waterfall. Be aware that the trail to the falls can be very muddy and swimming in the pool is not recommended.
What should I pack for a day hike in the Honolulu Forest Reserve?
It's essential to be prepared for changing weather. Pack plenty of water, snacks, and sun protection. Sturdy hiking shoes with good grip are a must, as trails are often muddy, rocky, and covered in tree roots. A light rain jacket is also highly recommended, as mountain showers are common and can appear suddenly.
How many hiking trails are in the Honolulu Forest Reserve?
There is an extensive network of trails to explore. Komoot features over 90 different routes in and around the Honolulu Forest Reserve, ranging from short, easy walks on the valley floor to strenuous, full-day ridge hikes.
What do other hikers enjoy most about the Honolulu Forest Reserve?
The area is highly regarded by the komoot community. Hikers frequently praise the immersive rainforest experience, with its lush canopy, unique plant life like bamboo groves, and the sounds of native birds. The challenging ridge hikes that offer panoramic views of Honolulu and the coast are also a major highlight for more experienced adventurers.
Are there any good circular or loop hikes available?
Yes, there are several excellent loop trails. For a relaxing walk, consider the Lake Waimaluhia – Stream Trail loop loop from Kailua. This easy loop offers a gentle path perfect for a quiet afternoon. For a much more demanding challenge, the Moanalua Ridge Trail – Kamananui Valley Trail loop from Moanalua Valley combines a strenuous ridge climb with a cooler walk back through the valley.
What kind of wildlife might I see?
The reserve is a sanctuary for native Hawaiian flora and fauna. Keep an eye out for native forest birds like the bright red ʻapapane and the ʻamakihi. You may also spot the Oʻahu ʻelepaio, an inquisitive bird important in local culture. The trails are lined with native koa and ʻōhiʻa lehua trees, as well as fragrant wild ginger.
What are the trail conditions typically like?
Expect true rainforest conditions. Trails are often muddy, slippery, and uneven with exposed tree roots, especially after rain. The weather can change quickly from sunny to misty and drizzly. It's crucial to wear appropriate footwear and be prepared for a rugged hiking experience, even on trails rated as 'easy'.
Are there any hikes with great panoramic views?
Absolutely. For some of the best views, experienced hikers should consider the ridge trails. The Tripler Ridge Trail to Kahoʻomoeʻihikapulani — Oʻahu is a moderate but long hike that rewards you with stunning vistas from the ridgeline over the surrounding valleys and out toward the coast.
What are the parking options for the trailheads?
Parking varies significantly by trailhead. Some popular trails, like those in Moanalua Valley, have dedicated parking lots that can fill up quickly, especially on weekends. For trails starting in residential areas, you will need to find street parking. Always be respectful of local residents by not blocking driveways or mailboxes.
Most popular routes in Honolulu Forest Reserve
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