The best road cycling routes in Honolulu County

Embark on a moderate road cycling adventure along the Makapu‘u Lookout via McCully loop, a 32.5 miles (52.3 km) route that includes a significant 1284 feet (391 metres) of elevation gain. This ride offers a dynamic experience, guiding you past the distinctive Koko Head and Koko Crater, with the historic red-roofed Makapu‘u Lighthouse serving as a prominent visual landmark. You can expect to complete this loop in about 2 hours and 16 minutes, enjoying the open road and coastal breezes.

To begin your ride, you'll find the starting point conveniently accessible, making it easy to get on your bike. Parking is generally available in the area if you're driving to the trailhead. While the route is mostly paved and smooth, it does require a good level of fitness to tackle the elevation changes comfortably. Plan your visit for clear days to fully appreciate the expansive ocean views.

This route stands out for its unique position within the Kaiwi State Scenic Shoreline, offering more than just a workout. As you cycle, keep an eye out for the chance to spot migrating humpback whales during the winter months, adding a special wildlife element to your journey. On exceptionally clear days, you might even catch glimpses of the distant islands of Moloka‘i and Lana‘i across the water, highlighting the trail's scenic grandeur.

The Waikiki to Kailua loop is a difficult racebike route that takes you on a challenging journey across O'ahu's diverse landscapes. You will cover 60.1 miles (96.8 km) and ascend 2572 feet (784 metres) in elevation, typically taking 5 hours and 5 minutes to complete. This ride transitions from urban settings to breezy coastal paths, offering stunning ocean views and lush Hawaiian scenery, especially as you pass notable viewpoints like Makapu'u Lookout.

Before you set out on this difficult racebike loop, be prepared for varied conditions. Some parts of the route might be unpaved, making them challenging to ride and possibly requiring you to push your bike for short distances. This adds to the overall difficulty, so plan your gear and fitness level accordingly. Consider starting early in the day to make the most of the cooler temperatures and avoid peak traffic. Always check local conditions and weather forecasts before your ride.

This route provides a comprehensive O'ahu cycling experience, showcasing the island's unique blend of natural beauty and coastal charm. It is a popular choice for experienced cyclists looking for a substantial workout and a chance to explore the island beyond the immediate city limits. The loop connects two distinct areas, offering a dynamic perspective on O'ahu's geography and culture. You will encounter a mix of terrain that highlights the island's varied environment.

Embark on the Kaena Point via Walalua loop, an easy road cycling route that stretches 20.9 miles (33.7 km) with a modest 349 feet (106 metres) of elevation gain, typically completed in 1 hour and 17 minutes. This route takes you to the remote westernmost tip of O‘ahu, offering a unique mix of paved and unpaved sections. You will ride with the Waianae Mountain Range on one side and the Pacific Ocean on the other, passing boulder beaches, tidal pools, and coastal plains with sand dunes as you approach Kaena Point itself.

Be prepared for an entirely exposed ride with no shade, so bring plenty of water, especially on warm days. Parking is available near the trailheads from the Waialua side. While listed for racebike, the unpaved sections can be challenging, requiring you to dismount and carry your bike over rocky or sandy parts; a mountain or gravel bike is often more suitable for this terrain.

This journey to the westernmost point of O‘ahu offers more than just a ride; it leads you through a significant wildlife sanctuary. Keep an eye out for diverse coastal flora and fauna. During winter months, you might even spot whales offshore, adding to the natural beauty of this unique coastal environment.

If you're looking for a road cycling route that transitions into a wild, remote adventure, the Farrington Highway to Kaʻena Point State Park offers just that. This 17.9-mile (28.8 km) journey, with a gentle 511 feet (156 metres) of elevation gain, takes about 1 hour and 10 minutes of riding, starting on smooth pavement before turning into a rugged, unpaved path. You'll ride past golden beaches like Yokohama Bay, with the Pacific Ocean on one side and the Waiʻanae Mountains on the other, culminating at the ecologically significant Kaʻena Point. The official difficulty is easy, but be prepared for challenging off-road conditions if you venture past the paved section.

Planning your ride requires a bit of foresight. While the initial stretch of Farrington Highway is perfect for road bikes, the trail inside Kaʻena Point State Park is rough dirt, gravel, and sand, making it better suited for mountain or gravel bikes. There's virtually no shade along the entire route, so pack ample water and sun protection. The remote nature of Kaʻena Point means no motorized vehicles are allowed past the paved road, ensuring a peaceful experience, but also highlighting the need to be self-sufficient.

This route leads to Kaʻena Point, the westernmost tip of Oʻahu, a protected natural area reserve. It's a fantastic spot for wildlife viewing, where you might see Laysan Albatrosses and other nesting seabirds, or even Hawaiian monk seals resting on the beaches. The trail also features unique natural landmarks like the Heart-Shaped Rock Hole, adding to the sense of discovery on this distinctive ride.

Embark on a challenging racebike journey along O‘ahu's stunning coastline, where you will discover iconic surf spots like Sunset Beach and Pipeline. This difficult 100.3-mile (161.4 km) loop takes you from Honolulu to Turtle Bay and back, offering expansive ocean views and the constant companion of the sea breeze. You will climb 4108 feet (1252 metres) over approximately 6 hours and 57 minutes, making it a demanding ride for experienced cyclists. The route showcases wild coastal beaches and unique rock formations, particularly as you approach the Turtle Bay area. Feel the island's energy as you pedal past these natural wonders.

Planning your ride requires careful consideration, especially regarding traffic on Kamehameha Highway. This road often features narrow shoulders and sharp curves, and it can become very busy, particularly on weekends. To enjoy a safer and more pleasant experience, consider starting your journey early in the morning to avoid peak traffic times. Be aware that road conditions may not always be optimal, and coastal erosion has previously led to lane closures for repairs.

This route offers a comprehensive tour of O‘ahu's diverse landscapes, allowing you to immerse yourself in the island's natural beauty. Beyond the main highway, you can also enjoy dedicated bike paths, such as the Ke Ala Pupukea Bike Path, which provides a paved, off-road option along certain sections of the North Shore. This allows for a varied cycling experience, blending open road challenges with more secluded stretches.

Embark on the Hoʻomaluhia Botanical Gardens via Pu‘uhalo loop, a moderate road cycling route spanning 19.6 miles (31.6 km) with an elevation gain of 1012 feet (309 metres). You can expect to complete this ride in about 1 hour and 27 minutes, immersing yourself in a lush, tropical rainforest environment. As you cycle, the dramatic Koʻolau Mountains will serve as a constant backdrop, and you will pass a large reservoir, offering picturesque views.

To make the most of your visit, consider cycling this route before 9 AM, which is when the gardens open to car traffic, ensuring a quieter experience. Parking is generally available at the garden entrance. Be aware that camera and mobile photography are strictly prohibited on the main entry road, so plan accordingly if you wish to capture memories.

This route stands out for its unique setting within a botanical garden, showcasing diverse plant collections from various regions worldwide. The rainforest environment is particularly vibrant, and after heavy rains, you might even spot waterfalls cascading down the mountains, adding to the natural spectacle of the area.

The Pālolo via Tantalus Drive loop offers a truly unique road cycling experience, plunging you into a dense tropical rainforest with natural tree tunnels and grand banyan trees. As you climb, the scenery unfolds to reveal breathtaking panoramic views from the Pu'u Ualaka'a State Park lookout, showcasing Diamond Head, Waikiki, and the Honolulu skyline. This difficult 27.9-mile (44.9 km) route, with its 3116 feet (950 metres) of elevation gain, is considered the best road cycling on Tantalus Drive and typically takes around 2 hours and 42 minutes.

Expect a consistent and demanding ascent on asphalt roads, featuring winding sections and numerous hairpin turns. While generally well-maintained, some parts may have potholes or be narrow, and wet pavement can be slippery, so exercise caution. This Pālolo via Tantalus Drive loop road cycling difficulty means it's best suited for experienced riders looking for a serious workout, not beginners.

Beyond the physical challenge, this route offers a peaceful escape from the city bustle, immersing you in fragrant eucalyptus and fruit trees. The Tantalus and Round Top Drive are also historic routes, with a seven-mile section listed on both state and national historic registers. It's a memorable ride that combines challenging climbs with stunning landmarks in Pālolo valley, making it one of O'ahu's most rewarding road biking adventures.

The Makapu'u via Pearl City road cycling route offers a dynamic tour across O'ahu, blending stunning coastal scenery with historically rich urban landscapes. You'll start with dramatic Pacific Ocean views near Makapu'u Beach Park, then transition towards Pearl City, catching glimpses of Pearl Harbor. The route includes the challenging Makapu'u Lighthouse Road, which features a steep 7.6% average gradient, making it a rewarding ride for those seeking varied terrain.

Planning your ride means considering the heat; an early morning start is highly recommended, especially in warmer months, as shade is limited along parts of the route. While mostly paved, be prepared for some potentially rough or unpaved sections that might require careful handling. This moderate route demands good fitness to complete its 62.2 miles (100.1 km) and 2002 feet (610 metres) of elevation gain in about 4 hours and 29 minutes.

This route stands out for its unique combination of natural beauty and historical significance, offering a comprehensive experience of O'ahu's diverse environments. Beyond the cycling, the Makapu'u area is a prime spot for viewing migrating humpback whales during winter months, and on clear days, you might even spot the distant islands of Moloka'i and Lana'i.

This moderate racebike route, the Honolulu to Sand Island loop, offers a smooth cycling experience through urban Honolulu and out to the coast. You'll cover 19.1 miles (30.7 km) with a gentle elevation gain of 413 feet (126 metres), typically taking about 2 hours and 2 minutes to complete. The ride provides a pleasant mix of city charm and coastal paths, leading you to Sand Island State Recreation Area. Here, you can enjoy unique views of the harbor and ocean, experiencing an arid, urban coastal park setting. Keep an eye out for Thomas Square, a notable man-made monument, as you cycle through the city sections.

When planning your ride, be aware that while the route is generally well-paved, sections within urban Honolulu can present congested traffic and potholes. It's a good idea to choose your cycling time to avoid peak traffic hours for a more enjoyable journey. If you are considering an overnight stay, remember that camping at Sand Island State Recreation Area requires a permit.

This route stands out for its blend of urban exploration and coastal tranquility, offering a unique perspective on Honolulu. The journey to Sand Island provides a distinct contrast to the city, showcasing a different side of the island's landscape. It's a great option if you're looking for a moderate cycling challenge that combines city sights with refreshing ocean vistas.