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Road cycling routes
United States
Hawaiʻi County

Keaau

The best road cycling routes around Keaau

5.0

(1)

34

riders

5

rides

Road cycling routes around Keaau offer access to diverse landscapes within Hawaii's Puna District. The region features a blend of lush tropical rainforests, unique volcanic terrain, and expansive coastal views. Cyclists can navigate roads that undulate with gentle ascents and descents, providing varied riding conditions. The area is characterized by its distinct natural features, shaped by past volcanic activity and proximity to the Pacific Ocean.

Best road cycling routes around Keaau

  • The most popular road cycling route is Hilo City…

Last updated: May 10, 2026

12

riders

#1.

Hilo to Old Mamalahoa Hwy loop

32.9km

01:31

300m

300m

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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Easy

5.0

(1)

7

riders

75.7km

03:45

1,200m

1,200m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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5

riders

41.6km

02:43

510m

510m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy

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Popular around Keaau

Cycling around Keaau

Running Trails around Keaau

Hiking around Keaau

Tips from the Community

Puffin
April 8, 2025, Mauna Loa - Macadamia Nut Visitor Center

Macadamia plantation with sales and beautiful garden

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Yummy
April 7, 2025, Kaumana Caves

Admission is free

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Puffin
April 7, 2025, Rainbow Falls

impressive waterfall in front of a huge cave

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Puffin
April 7, 2025, Boiling Pots

Observation platform with a view of the bubbling water

Translated by Google

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Puffin
April 7, 2025, Kaumana Caves

From the entrance, the lava tunnel leads in two directions. The tunnel system is 2,197 meters long in total. Sturdy footwear and sufficient lighting are recommended.

Translated by Google

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The water on the upstream side runs through an old lava tube. I'm told (but haven't seen myself) that when the water isn't too rough, you can carefully hike upstream through the tube to see two waterfalls. There's good parking for several cars just past the bridge in the direction away from Hilo (towards Pepeekeo).

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Christopher
October 31, 2023, Pu'ukea Crater

Located just off of the road is the Puʻukea Crater. This is a relatively small crater compared to the much larger crater residing next door, Kapoho Crater. There s also another unique geographic occurance known as 'Green Lake'. This is a green patch of forest that is completely surrounded by a lava flow.

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Lava Tree State Park is a beautiful park. The park gets its name from lava molds of the tree trunks that were formed when a laval flow came through the area in 1790. The park offers a nice contrast with sooty, earth trees growing next to vibrant flowers and ferns.

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Frequently Asked Questions

How many road cycling routes are available around Keaau?

There are 6 road cycling routes around Keaau listed in this guide, offering diverse experiences from coastal rides to routes through lush rainforests and volcanic terrain.

What kind of terrain can I expect when road cycling in Keaau?

Road cycling in Keaau offers a unique blend of terrain. You'll encounter lush tropical rainforests, landscapes shaped by volcanic activity, and expansive coastal views. Routes often feature gentle ascents and descents, providing varied riding conditions. The famous 'Red Road' (Highway 137) in the Puna district, for example, takes you through dense coconut groves, past lava fields, and along black sand beaches.

Are there road cycling routes suitable for beginners or easy rides?

Yes, there are routes suitable for easy rides. For instance, the Carlsmith Beach Park – Richardson Beach Park loop from Hilo is an easy 15.5-mile (25.0 km) trail that takes you through coastal parks and along the ocean, perfect for a relaxed ride.

Are there options for longer distance road cycling in the Keaau area?

Absolutely. For those seeking a longer ride, the Kea'au to Nanawale Forest Reserve loop is a moderate 37.5-mile (60.4 km) path that leads through tropical rainforests, offering a substantial distance for experienced cyclists.

What natural features or landmarks can I see along road cycling routes near Keaau?

The region is rich in natural beauty. You can cycle past areas impacted by past volcanic eruptions, witness dramatic lava flows, and enjoy stunning coastal vistas. Notable attractions include the Liliuokalani Gardens (a Japanese-style garden near Hilo) and the Mauna Loa Macadamia Nut Visitor Center, which is part of a pleasant cycling loop.

What are some scenic road cycling routes with good views around Keaau?

Many routes offer scenic views. The historic 'Red Road' (Highway 137) is renowned for its continuously changing scenery, including dense coconut groves, tropical rainforests, and oceanside parks. Coastal routes like the Carlsmith Beach Park – Richardson Beach Park loop from Hilo also provide expansive ocean vistas.

What do other road cyclists enjoy the most about road cycling in Keaau?

The road cycling routes around Keaau are highly rated by the komoot community, with an average score of 4.0 stars. Cyclists often praise the diverse landscapes, from lush rainforests to unique volcanic terrain and beautiful coastal views, which make for a dynamic and memorable riding experience.

Is Keaau a good base for exploring other areas by bike, such as Hawaii Volcanoes National Park?

Keaau serves as a convenient starting point for exploring the wider Puna District and its diverse natural beauty. While direct cycling within Hawaii Volcanoes National Park might be limited to designated roads, Keaau's proximity makes it a good base for combining cycling with visits to the park. For current information on eruption viewing and park access, you can check the National Park Service website.

Are there any road cycling routes that pass by cafes or places to stop for refreshments?

While specific cafes directly on every route are not detailed, routes like the one passing the Mauna Loa Macadamia Nut Visitor Center offer opportunities for a stop. The town of Keaau itself and nearby Hilo provide various options for cafes and refreshments before or after your ride.

What should I be aware of regarding road conditions when cycling around Keaau?

Cyclists should exercise caution on certain roads, particularly those with narrow sections, blind curves, or no shoulder, especially in older parts of the 'Red Road'. Always be aware of your surroundings and local driving attitudes in Hawaii.

Are there any road cycling routes that are considered moderate in difficulty?

Yes, several routes are rated as moderate. The Hilo City Ride loop, a 25.8-mile (41.6 km) trail, offers a moderate ride through urban and coastal areas. Another moderate option is the Kea'au to Nanawale Forest Reserve loop, which is longer at 37.5 miles (60.4 km).

Can I find road cycling routes that are loops, starting and ending in the same place?

Yes, many of the recommended road cycling routes around Keaau are loops. Examples include the Hilo City Ride loop and the Kea'au to Nanawale Forest Reserve loop, allowing for convenient round trips.

Most popular routes around Keaau

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