Punaluu Black Sand Beach Park
This was the first real all-black sand beach we saw. There were a few salt & pepper ones we went to, but this was all black. And just as the green sand beach, this is formed when lava meets the ocean and breaks into tiny little shards. The sand on this beach is fine like normal sand, but it is not soft. It's like little granules of glass. Not the best to have stuck in your shoes!