Waipoli Road is one of hardest climbs in Hawaii and the US. This monster is on the US Top 10 bike climbs list which includes Mauna Kea, Haleakala, Mauna Loa, and Kaloko Dr. It also makes the list of World Top 100 cycle climbs. Waipoli and Haleakala make up the two Top Ten US climbs on Maui. Both are a must if you are cycling Hawaii! Have fun - it is a True Top 10 U.S./Top 100 World. Enjoy an incredible and unique and oft scenic climb in Hawaii - it WILL test you!