The best road cycling routes around Urban Honolulu

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 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.

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.