Piilani Highway via Ulupalakua

The terrain is incredibly diverse and challenging. You'll encounter sections of well-paved road, but also significant stretches of "bad asphalt" and several kilometers of gravel. The route features narrow, windy sections with blind corners, single-lane bridges, and numerous "steep rollers" and bumpy roads. Near La Perouse, the pavement can be very rough or turn to dirt, making it unsuitable for typical road bikes beyond that point. Be prepared for continuous ups and downs.

The scenery is a major highlight, transforming dramatically throughout the ride. You'll start in cooler upcountry ranchlands with farms, then transition to dry grasses resembling a savannah. Further along, especially towards Kaupo, you'll experience breathtaking coastal views, rugged cliffs, lava fields, and roads carved into the cliffs. Spectacular views of the ocean and nearby islands like Kaho'olawe and Molokini are common, offering a remote and unique side of Maui.

This route is considered difficult and requires very good fitness. It's a strenuous ride with continuous elevation changes, featuring many "up and down" sections and "BIG rollers." Strong headwinds can also add to the challenge, particularly when heading east. The combination of rough pavement, steep sections, and the remote nature of parts of the route contributes to its advanced difficulty.

While Maui generally has pleasant weather year-round, the best times to cycle this route are typically during the drier seasons to avoid heavy rains that can make unpaved sections more challenging. Early mornings are often ideal to avoid the strongest headwinds and heat, especially in exposed coastal areas.

Yes, a significant highlight is the Piilani Highway Coastal Road itself, known for its dramatic ocean views and rugged beauty. You'll also pass through serene ranchlands near Ulupalakua, and experience the unique transition from lush green to dry savannah-like landscapes. The remote coastal sections offer a glimpse into a less-traveled part of Maui.

Services are very limited on this remote route. Beyond the Ulupalakua Ranch store, there are very few options until you reach the Kaupo General Store, and then again until Hana. It is crucial to plan ahead and carry sufficient water, food, and any other necessary supplies for the duration of your ride.

Yes, the route briefly passes through sections of the Kalama Park Road and the Lower Trail. These are short segments, but they are part of the overall path.

No, this route is generally not suitable for beginners or young families due to its difficult rating, challenging terrain (including gravel and rough pavement), significant elevation changes, and remote nature with limited services. It is best suited for experienced touring cyclists with very good fitness.

Given the route's difficulty and remoteness, you should bring ample water, high-energy snacks, sun protection (sunscreen, hat, sunglasses), layers of clothing for varying temperatures, a basic bike repair kit, and a first-aid kit. A reliable GPS device is also highly recommended, as cell service can be spotty.

While the Piilani Highway itself does not typically require a specific cycling permit, if your route takes you into or through designated areas of Haleakalā National Park, standard park entrance fees may apply. It's advisable to check the official Haleakalā National Park website for current entrance fees and any specific regulations regarding cycling within park boundaries, especially if you plan to extend your ride into the park.

Parking options will depend on your starting point. If beginning near Ulupalakua, you might find parking near the Ulupalakua Ranch store or other designated areas in the vicinity. For sections closer to Haleakalā National Park, check park-specific parking regulations and availability. Always ensure you are parking legally and safely, respecting private property.