The concrete block is an anti symbol of nature?

Tree soft coral (Dendronephthya sp.)

I like Soft coral against the backdrop of sunshine.
It’s the one of symbolic scenery of the undersea in Owase.
It’s beautiful, elegant, mysterious.
It’s beauty in nature.
However, this soft coral is standing on the artificial fish reef.
It is made of a lot of concrete blocks.


The concrete block is an anti symbol of nature.
It was installed on the sandy seabed about 50years ago.
The time makes it keeps changing from an artificial thing to the natural rock reef.
We can enjoy the colorful soft coral and many kinds of sea creatures here, thanks to the artificial fish reef.