This place must not be missed. Lava Pipeline, Black Sand (Pebble) Beach, Landscape, Trail. Fantastic. It's a park, so don't forget the rules of the park - don't leave anything but footprints, don't take anything away except photos. Take time to feel the atmosphere. You have to take a detour from Hannah Road and drive a little longer to get there, but it's worth the effort.
The park is best known for its black beach, which is at the end of Hannah Road. It's free, and parking is free. If the weather is good, the sea is green. You can climb up the hill.