Starting at Maui's North Shore, the climb combining Baldwin Avenue and Olinda Road takes you on a scenic and challenging journey from coastal warmth into cool, lush upcountry forests on the slopes of Haleakala. You'll first ascend the steady, often busy Baldwin Avenue for approximately 5-6 miles, gaining around 1,600ft towards Makawao town with an average gradient of 5-6%. Along here you can enjoy views back towards the ocean. The character changes significantly when you turn onto the much quieter, narrower, and winding Olinda Road. Prepare for a tougher test here, as you climb deeper into beautiful, shaded forest on gradients averaging 7-9%, featuring sustained steep ramps that push over 10-15%. Enjoy the peaceful forest immersion, knowing you've conquered a classic Maui ascent towards the volcano's upper slopes.