Who can tell me where the fun part of the black sand beach is?

This trip once again includes the black sand beach as one of the travel destinations, but personally, I'm not very interested in this place. It's more suitable for slow-traveling families with children, bringing the kids to the black sand beach to play in the water, and by the way, it's a good choice to watch the habitat of sea turtles. There are many underground cold springs near the black sand beach, which gush out from the rock crevices and flow into the sea. However, most of these attractions are in private areas, so don't rush in. I believe these places will become places where small private tours can visit in the future. But overall, I have no feelings for this place. For me, it's a place where I don't want to go again after going once.