The best cycling routes around Mauna Kea

Cycling to the Mauna Kea summit from Puʻu Huluhulu is an exceptionally demanding journey, traversing 29.9 miles (48.1 km) with a staggering 7155 feet (2181 metres) of elevation gain. The route begins in the lush kīpuka of Puʻu Huluhulu, transitioning through diverse climate zones to a stark, lunar-like volcanic landscape above the clouds. Expect a mix of paved and challenging unpaved sections, with steep grades that can reach 18-20% in the final kilometers, making it a difficult ride that takes approximately 4 hours and 40 minutes.

Planning your visit requires careful consideration due to the extreme altitude and varied terrain. Acclimatization at the Visitor Information Station (VIS) at 9,200 feet is highly recommended to cope with the 42% less oxygen at the summit. A support vehicle is strongly advised for most riders, and you'll need a gravel or mountain bike for the unpaved sections. Be prepared for rapid weather changes and significantly colder temperatures as you ascend.

This route is globally recognized as one of the hardest cycling climbs, not just for its physical demands but also for its unique ecological and cultural significance. You'll experience five distinct climate zones, from tropical forests to an alpine desert, and witness the world's most advanced astronomical observatories. Mauna Kea is also a sacred site for Native Hawaiians, adding a profound spiritual dimension to this epic adventure.

Embark on an unparalleled touring cycling adventure to the Mauna Loa Observatory from Puʻu Huluhulu, traversing a landscape that transforms from forested "kipukas" to vast,

Prepare for a challenging touring bicycle ride along the scenic Kohala Coast, where you'll encounter significant climbs and impressive ocean views. This difficult 21.0 miles (33.8 km) route will have you gaining 2620 feet (799 metres) in elevation, taking approximately 2 hours and 28 minutes to complete. As you cycle, you'll pass by the historic Puʻukoholā Heiau National Historic Site, a powerful ancient temple overlooking the Pacific.

Be ready for a demanding ride; the Kohala Coast is known for strong winds that can add to the difficulty, especially during the significant climbs. You will be sharing the road with vehicles for much of the route, as dedicated bike lanes are not always present. The trail concludes at Samuel M. Spencer Beach Park, which offers convenient amenities like restrooms, showers, and picnic tables, making it an ideal spot to relax and refresh after your touring bicycle adventure.

The route offers a unique blend of physical challenge and cultural immersion, leading you past the Puʻukoholā Heiau National Historic Site. This ancient Hawaiian temple, built by King Kamehameha I, provides a profound connection to the island's rich history. Your journey culminates at Samuel M. Spencer Beach Park, where you can enjoy a beautiful white sand beach and calm waters, a perfect reward after conquering the challenging terrain of this touring bicycle route.

Embark on a moderate touring bicycle journey along the Kawaiku'i Beach Park loop, a 9.3-mile (15.0 km) route that typically takes around 1 hour and 9 minutes to complete. You will gain 1016 feet (310 metres) in elevation as you pedal through diverse scenery, from refreshing coastal views to dense, lush rainforests. The eastern side of the Big Island is vibrant with tropical vegetation, and a key highlight is the famous triple-tier Umauma Falls, a prominent natural feature along your path.

This touring cycling route is primarily on paved surfaces, making it accessible for various skill levels. When planning your visit, be prepared for Hawaii's dynamic weather; you might encounter both bright sunshine and occasional rain, particularly on the Hilo side of the island. While no specific permits are mentioned for this loop, it is always wise to check local conditions before you start your ride.

This route offers a focused cycling experience on the Big Island, showcasing its unique natural environment. The presence of Umauma Falls, a significant natural landmark, adds to the appeal of this journey. You will experience the rich tropical ecosystem that thrives on the island's eastern side, making it a memorable ride.

Embark on a touring bicycle journey to ʻAkaka Falls via Honomū, a moderate route spanning 6.9 miles (11.0 km). You will experience a significant climb, gaining 928 feet (283 metres) in elevation, which typically takes about 50 minutes to complete. As you pedal, you'll pass through lush tropical rainforests, enjoying views of horses, cows, and the distant ocean. The path is rich with dense jungle foliage, bamboo groves, and even wild orchids, creating a vibrant landscape that unfolds around you.

When planning your ride, be aware that the ʻAkaka Falls Loop Trail within ʻAkaka Falls State Park is a paved footpath strictly for hiking, and bicycles are not permitted. Your cycling route will take you directly to the park entrance, where you can then explore the falls on foot. Prepare for a challenging ascent, as some sections of the ride reach an 11% grade, so make sure you are ready for the climb.

This route offers more than just a ride to the falls; it's a journey through the area's rich history. Along the way, you might spot historic elements like old wiring and a wide bridge spanning Honomū Stream, remnants of the region's plantation past. The anticipation builds as you approach the impressive 442-foot ʻAkaka Falls, a natural wonder that makes the effort truly rewarding.

Embark on a challenging touring cycling adventure along the Old Jeep Road via Honokaʻa, a difficult route stretching 13.2 miles (21.2 km). You will gain 1834 feet (559 metres) in elevation, cycling through the dense, lush Hāmākua Forest Reserve. Expect a rugged, immersive journey where the terrain is primarily unpaved, often covered in leaves, and can be quite bumpy with rutted dirt and lava rock. The native ʻōhiʻa forests and deep gulches create a shaded, almost

Embark on an easy touring bicycle ride along the Old Onomea Road via Mamalahoa Highway loop, a 4.5-mile (7.3 km) route that takes about 31 minutes to complete. You will cycle through a lush "living green tunnel" of dense rainforest, where vibrant tropical plants and wild orchids line the narrow paved road. The route features centuries-old bridges, such as the Kawainui Stream Bridge, spanning gulches and streams. As you pedal, you might catch glimpses of the Pacific Ocean and Onomea Bay through the foliage. This easy ride involves a gentle climb of 397 feet (121 metres), making it accessible for most cyclists.

While the Old Onomea Road section offers a quieter experience with less traffic, be aware that completing the loop involves riding on Highway 19. Some parts of Highway 19 may have narrow or no shoulders, particularly around gulches and sharp turns, so exercise caution when cycling there. It is always wise to be prepared for rain, as wet conditions can make the roads slippery. Remember to follow all Hawaiian cycling laws throughout your ride.

This historic route provides a unique glimpse into Hawai‘i's past, winding through areas that have seen centuries of use. The dense rainforest canopy creates a distinct atmosphere, offering shade and a sense of immersion in nature. It is a pleasant way to experience the Big Island's natural beauty and engineering heritage on two wheels.

Embark on the Mamalahoa Highway to Mamane Street loop, an easy touring bicycle route that guides you through dense jungle foliage. You will cycle past palms and tall ferns, with sunlight dappling through the canopy, experiencing glimpses of the Pacific Ocean and rolling green fields. This pleasant ride covers 3.6 miles (5.7 km) with an elevation gain of 270 feet (82 metres), taking approximately 22 minutes.

This route begins near the historic town of Honoka'a, offering a scenic alternative to busier roads. Parking is generally available in the Honoka'a area, making it convenient to start your touring cycling adventure. After your ride, you can explore the local culture and find refreshments at the cafes and shops along Mamane Street.

The Mamalahoa Highway to Mamane Street loop incorporates sections of the Old Mamalahoa Highway, known for its picturesque qualities and century-old narrow bridges. This trail immerses you in the tropical landscapes of the Hamakua Coast, providing a quiet and enjoyable experience for any fitness level.

Embark on a difficult touring bicycle ride along the Hāmākua Coast, covering 25.3 miles (40.8 km) with a significant 3021 feet (921 metres) of elevation gain. This challenging route offers dramatic scenery, where emerald green sea cliffs meet lush tropical foliage. You will encounter sweeping ocean panoramas, often with crashing surf against craggy lava rocks and waterfalls descending into jungle-clad gulches. The journey culminates at Laupāhoehoe Point Beach Park, a scenic destination known for its rugged lava formations and unique black volcanic rock. Plan for approximately 3 hours and 4 minutes to complete this memorable cycling experience.

When planning your ride, be aware that the main thoroughfare, Highway 19, generally provides wide, smooth shoulders for cyclists, though these can become narrower when crossing bridges. The offshoot road leading to Laupāhoehoe Beach Park is notably windy and descends about 400 feet, featuring grades up to 7%, with one particularly steep section reaching 13%. Laupāhoehoe Point Beach Park itself offers convenient amenities such as pavilions, restrooms, and picnic tables, making it an ideal spot for a rest stop during your tour.

This route offers a peaceful cycling experience, allowing you to fully immerse yourself in the natural beauty of the Hāmākua Coast. The area is characterized by its unique geological features, including the striking lava formations at Laupāhoehoe Point. As you cycle, you will witness the dynamic interplay between the land and the Pacific Ocean, a hallmark of this Hawaiian coastline. This trail provides a distinct perspective on the island's rugged charm and tropical environment.