Great section of tephra layers
Another remarkable destination that deserves your attention is the "Great section of tephra layers" on the southwest side of the island. These distinct layers, resembling the rings of a baumkuchen cake — a kind of spit cake from German cuisine which is also a popular dessert in Japan. Oshima "Baumkuchen" was formed through countless eruptions spanning tens of thousands of years. The accumulation of scoria volcanic ash resulted in the formation of these captivating striped patterns. As I meticulously counted the layers, I gained a profound appreciation for the rich history of Izu Oshima.
Riding my bicycle along the scenic route, I was treated to a delightful sight. On one side, the turquoise sea stretched out before me, while on the other side, the stratigraphic section unfolded like undulating waves. It was an experience I will never forget.