First, you will need a 4x4 vehicle like a Jeep to get to the Polipoli Springs State Recreation Area, as the windy paved road leading up to the entrance...
Less busy then Haleakala Nation Park at a lower elevation several well marked trails make for relaxing and interesting hikes on Haleakala mountain can be...
We just did the short Polipoli trail (1.2 miles roundtrip) at the Polipoli Springs Rec Area and it was really nice. You'll see a lot of signs on the way...