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Honolulu County

Honolulu Forest Reserve

The best walks and hikes in Honolulu Forest Reserve

4.6

(351)

4,678

hikers

105

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: May 10, 2026

3

hikers

#1.

Tripler Ridge Trail

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.

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Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Popular around Honolulu Forest Reserve

Cycling in Honolulu Forest Reserve

Running Trails in Honolulu Forest Reserve

Road Cycling Routes in Honolulu Forest Reserve

MTB Trails in Honolulu Forest Reserve

Tips from the Community

Lisa
September 26, 2024, Kamananui Valley Trail

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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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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Even in foggy weather, it's worth waiting 30 minutes. Sometimes the clouds suddenly break up and then you have the view that you came up here for (among other things)...

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Be aware that trekking the Haiku Stairs (Stairway to Heaven) is prohibited, whether you're starting in the valley (potential fine of $600+ and controls are tight) or walking down from the top.

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It's muddy even in better weather. But down at the parking lot there are ways to clean your completely dirty hiking boots (and everything else).

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Free entry and a fantastic setting. A must see on Oahu. Unfortunately, stopping in the entrance area for a photo is forbidden, there were too many who stopped for Instagram.

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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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