I considered the problem of "marine plastic" for this subject this time. Here you can see the beautiful volcanic ash layer called "Dorber of the Orient" in Choshi, Chiba Prefecture. However, contrary to the beauty created by nature, the damage to the sea that humans have made is too great. In this way, various garbage is launched at the beach. For the purpose of preserving the landscape, I cleaned up the small but noticeable trash and returned.