A beautiful, scenic and historical place to visit. I’ao valley have several trails . There’s a paved short trail loop that’s 0.4 mile that brings you to the valley overlook and down to the gardens and ponds. There is another trail that’s unpaved and leads you to the forest vegetation, water creek and amazing view of the valley. The I’ao needle is inside the state park. The needle is a vegetation covered lava remnant which has a sharp ridge. Theres a lot of Hawaiian historical significance that took place in this area. There’s a $5 per person entry plus $10 per car to park. You can avoid the parking fee if you’re lucky enough to get a parking spot in the street before you enter the park. Overall a nice place to visit if you’re in Maui