Crater Road via Haleakala Highway

This route is considered one of the most difficult paved bike climbs globally, ranking #2 in the US. It involves ascending over 10,000 feet from near sea level to the summit of Haleakalā Volcano over approximately 35-36 miles. Expect an average grade of 5.3-5.4%, with sections reaching 10-15%. The increasing altitude, especially above 7,000 feet, significantly adds to the difficulty.

Given the significant elevation gain and distance, the ascent is a substantial undertaking. While the komoot tour data suggests a duration of around 2 hours 48 minutes, this is likely an estimate for a very fast descent or a portion of the route. Most touring cyclists should plan for a full day, dedicating several hours to the challenging climb, plus time for breaks and enjoying the summit views. The descent is much faster, often described as an 'unreal' long coasting ride.

The scenery is incredibly diverse. You'll start in warmer, green farmlands, then transition through clouds into a dramatic, brown lava rock landscape resembling a 'moonscape' closer to the summit. On clear days, panoramic views of Maui, and even Mauna Kea and Mauna Loa on the Big Island, are visible. The roadway is generally in excellent condition with good shoulders and bike lanes, featuring numerous switchbacks.

Weather conditions change dramatically from base to summit. It can be warm and humid at the start, but windy and cold at the top, even in summer. Passing through clouds is common and can make you wet. It's crucial to bring warm layers, a windbreaker, and rain gear, regardless of the season, to adapt to these rapid changes.

Services are limited. The Kula Market at approximately mile 13.5 is a key refueling point. Within Haleakalā National Park, visitor centers offer water and restrooms. Plan to carry sufficient water and snacks for the majority of the climb.

Yes, cyclists must pay a $15 entrance fee to enter Haleakalā National Park. This fee is typically valid for three days. No specific cycling permits are mentioned beyond the park entrance fee.

While the exact starting point for parking can vary, many cyclists begin their ascent from near sea level in towns like Paia or Kahului, utilizing roadside parking or designated areas. There are also options further up the highway before the national park entrance. Always check local regulations for parking availability and restrictions.

No, dogs are generally not permitted on trails or unpaved roads within Haleakalā National Park, including cycling routes. They are typically only allowed in parking lots and on paved roads accessible by vehicle. It's best to leave pets at home for this challenging cycling adventure.

The route can be cycled year-round, but the best time is generally during Maui's drier seasons, typically spring (April-May) and fall (September-November), when the weather is more stable. However, be prepared for significant temperature and weather changes regardless of the season due to the extreme elevation gain.

This route offers a rare 'sea to summit' experience, allowing cyclists to continuously climb from near sea level to over 10,000 feet on a paved road. The immense physical challenge, combined with the dramatic landscape transformation and the epic descent featuring the 'Fabulous 29' switchbacks, makes it a truly iconic and memorable ride.

Yes, the Crater Road via Haleakala Highway route does intersect with sections of the Old Haleakala Bridle Trail, which covers approximately 4% of the route. This historic trail offers a glimpse into the area's past.