I think you misunderstood me. We went to the end point for us which was before the offroad path just after you see the backside of Haleakala State Park. We didn't do the full loop since we didn't want to risk the rental car. We then turned back and headed back the way we came, hitting the places we had passed already on the way back. That way we weren't stuck behind other people going in order. So we started at Paia and drove straight through to Waimoku Falls. Got out there and walked to the falls. Got back in the car and headed back towards Paia. This was back in the days before navigation on phones. We did it via a CD and a map. But we got in everything we wanted to see. The Seven Sacred Pools, the black sand beach, the red sand beach, and the Ke’anae Peninsula.
I think this is the guide we used as this looks very familiar. I mapped out our journey the night before when we were having dinner at Mama's Fish House. If the Haliimaile General Store is still around, I highly recommend it.
You can get the guide on your phone now. https://ther2h.com/#intro-1