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United States
Hawaiʻi County

Hāmākua Forest Reserve

The best walks and hikes in Hāmākua Forest Reserve

4.4

(10)

147

hikers

11

hikes

Hikes in Hāmākua Forest Reserve explore a lush rainforest environment on the northeastern side of the Island of Hawaiʻi. The landscape is characterized by dense native ʻōhiʻa forests, deep gulches, and a rich understory of ferns. Many of the area's maintained trails are located within the Kalōpā Native Forest State Park and Recreation Area, which is adjacent to the reserve.

Best hiking trails in Hāmākua Forest Reserve

  • The most popular hiking route is the Perimeter Horse Trail, Ironwood Lane, Gulch…

Last updated: May 28, 2026

4.5

(2)

16

hikers

#1.

Perimeter Horse Trail Loop

6.22km

02:14

180m

180m

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate

4.0

(1)

6

hikers

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

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

Easy

Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate

Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate
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Popular around Hāmākua Forest Reserve

Cycling in Hāmākua Forest Reserve

Road Cycling Routes in Hāmākua Forest Reserve

Tips from the Community

Christopher
October 28, 2023, Old Jeep Road in Hāmākua Forest Reserve

Hāmākua Forest Reserve Jeep road navigates its way through very dense forest. The trail itself is pretty bumpy with a leaf floor, similar to a Pacific Northwest trail in the fall. A mountain bike or something with some 26x2.2+ tires would be ideal. This trail is best left to dry conditions due to the mud that can form.

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oliviakellis
October 18, 2023, Silk Oak Lane

Look for the stunning blooms of naturalized Grevillea Robusta, or silk oak, trees if running on the Silk Oak Trail between September and November. Their flowering transform the reserve into a scenic wonderland during these months. Also called silver oak, their prominent presence lends beauty alongside the trail named for this Australian native.

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With no elevation gain, the easy and beautiful Kalōpā Nature Trail is ideal for runners seeking flat, smooth footing.

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Perimeter Horse Trail is the longest trail in Kalōpā Native Forest State Park and Recreation Area and has a length of about 2.3 miles. As the name indicates, this trail is designated for horses but can be used for hiking a well. If you switch to Ironwood Lane (and later to Gulch Rim Trail) when you reach the southern end of Perimeter Horse Trail, you can form a loop and don't have to hike back the same way.

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Kalōpā Nature Trail is a very easy hike in the Kalōpā Native Forest State Park and Recreation Area. The beautiful walk through rainforest does not include any elevation gain and is therefore suited for families. Along your hike you will spot many different forest trees, shrubs and ferns.

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Frequently Asked Questions

Are hiking permits required for the Hāmākua Forest Reserve?

For most day hikes within the Kalōpā Native Forest State Park and Recreation Area section, no special permits are required. However, access to certain areas of the greater Hāmākua Forest Reserve, especially for activities like hunting or accessing remote trails, may require permits. It's always best to check the official Hawaiʻi Division of Forestry and Wildlife website for the most current regulations before your visit.

What are the trail conditions like in the Hāmākua region?

The trails are primarily within a lush rainforest, so expect shaded paths that can be muddy and slippery, especially after rain. The terrain is characterized by dense ʻōhiʻa and fern forests with some routes following the rims of deep gulches. Due to the nearly 84 inches of annual rainfall, proper waterproof hiking shoes with good grip are essential for safety and comfort.

Are there any easy, family-friendly hikes in the area?

Yes, the Kalōpā Nature Trail loop is perfect for families. It's a gentle 0.9-mile (1.4 km) walk through a beautiful native forest with very little elevation change, making it accessible for all ages. The trail often features informational signs about the local plant life.

Can I see waterfalls while hiking in the forest reserve?

While the Hāmākua Coast is famous for its waterfalls, most of the major ones like ʻAkaka Falls are in their own state parks and not directly on the hiking trails within the Hāmākua Forest Reserve itself. The hikes in the reserve focus more on the immersive rainforest and gulch environment. The scenic drive along the coast to the trailheads is where you'll get the best views of the region's iconic waterfalls.

What should I pack for a hike in Hāmākua Forest Reserve?

Given the damp and often misty environment, waterproof gear is a must. Pack a rain jacket, wear sturdy waterproof hiking boots, and bring plenty of water. Insect repellent is also highly recommended. Even on cloudy days, sun protection is a good idea. The forest canopy is dense, but you can still get sun exposure in open areas.

How do I get to the trailheads and is there parking?

The main access point for many popular trails is the Kalōpā State Recreation Area, which is accessible by car from the main highway. There is a designated parking area available for visitors. The roads leading to the park are paved. Be aware that access to more remote parts of the forest reserve or specific trailheads like the one for Waipiʻo Valley can have restrictions or require a 4WD vehicle, so always check current conditions before you go.

Are there circular walks available?

Yes, many of the established trails in the area are loops, which makes for convenient hiking. For a moderate circular route that explores more of the park, consider the Split Trunk Tree Trail – Kalōpā Nature Trail loop. This 3.4-mile (5.5 km) hike offers a wonderful tour of the forest's interior.

Is camping allowed near the hiking trails?

Yes, camping and cabin rentals are available at the Kalōpā State Recreation Area, providing a great base for exploring the trails. This allows you to have an immersive experience in the forest. Reservations are required and should be made in advance through the official state parks website.

What kind of wildlife can I expect to see?

The reserve is a sanctuary for native Hawaiian flora and fauna. It's an excellent destination for birdwatching, where you might spot native birds like the ʻapapane, ʻio (Hawaiian hawk), and the colorful ʻiʻiwi among the ʻōhiʻa trees. The forest floor is rich with various species of ferns. Remember to observe wildlife from a distance and never feed the animals.

What do other hikers say about the trails in Hāmākua Forest Reserve?

The trails in this region are highly regarded by the komoot community, with an average rating of 4.6 stars. Hikers frequently praise the lush, vibrant green of the rainforest and the feeling of being immersed in a native Hawaiian ecosystem. The well-maintained paths within Kalōpā Park are also a common point of positive feedback.

Are dogs allowed on the trails?

Regulations regarding dogs can vary. In Kalōpā State Recreation Area, dogs are generally permitted in designated areas but must be on a leash and are not allowed in cabins. For trails in the wider forest reserve, rules may differ. It is crucial to check the specific regulations on the Hawai'i State Parks website before bringing your pet.

Is hunting permitted in the Hāmākua Forest Reserve?

Yes, hunting is permitted in designated areas of the Hāmākua Forest Reserve and is managed by the Division of Forestry and Wildlife. Hikers should be aware of hunting seasons, wear bright clothing for visibility, and stay on marked trails, especially when hiking in areas outside of the main Kalōpā State Recreation Area.

Most popular routes in Hāmākua Forest Reserve

Cycling in Hāmākua Forest Reserve

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